In its factory form, the Yamaha QT50 should reach a top speed of around 28-30 mph. So my first top speed experiment will be to try a lighter weight synthetic oil to see if I obtain a noticeable speed increase. Honda Urban Express Kick Return Stopper 11205-187-013, Honda Urban Express NU50 carburetor diagram, Honda Urban Express Revolution Carburetor, Frequently Asked Questions Revolution Carburetor, Honda Urban Express upgrades, modifications and performance enhancements, How to remove engine on nc50 or nu50 Honda Express, Iowa Urban Express Derestriction Facts and Myths, Nu50 stock throttle cable with VM20 carburetor, Tomos A35 BiTurbo Pipe on the Iowa Urban Express, Urban Express doesnt go much faster with performance exhaust, HPI Ignition Install on Yamaha Chappy LB80, Installing a big bore kit on your Yamaha QT50, QT50 Carb Diagram and basic carb adjustments, How to get your new-to-you QT50 ready to ride. When you increase top speed, make sure to upgrade your brakes with new pads, new cables, lube old cables, etc. Signaler un abus. Performance upgrades, as listed above, exist for the QT50 that will make 50 mph~ attainable. Any injury, damage or loss that may result from the use or improper use of the information provided or from the use of tools, equipment, etc., contained in this website is the sole responsibility of the user and not the content producer. Youd seize before you got to 40. I've got several other ideas but will reveal them one by one as I make progress from test to test. They just need to make the cylinder "breathe" better at mid/high RPM. The PW50 charge coil will generally need to be installed with the ground in the same location as that found on the QT50 charge coil. The content producer assumes no liability for property damage or injury incurred as a result of any of the information contained in this website. How do I fix it so that my center stand/kickstand doesnt hit it? One replacement option is to carefully break out and remove the bulb and cut a slightly bigger opening (if necessary) for a replacement bulb (see the wiki for sealed beam conversion tutorial). I talk about this above. 9. The engine needs more fuel going uphill because it is under a bigger load. What you are really experiencing is the engine four stroking as a result of too much fuel in the combustion chamber. The MLM exhaust will also require you to install a bigger main jet. Web designers, SEO consultants, etc. If it passes all the tests above, is in mint condition, and has title, I wouldnt pay more than $650. Headlight doesnt work subtract $45; It offers a little better low and mid range performance than the People's Pipe but a little less top end; however, at $135 retail, it's $65 cheaper than the people's pipe. The K&N RC-2540 Universal Clamp-On Air Filter is a good but expensive choice. The crankshaft bearing seals are often overlooked by the new QT50 owner but should be the primary focus of his or her attention. Kevlar brake pads and stiffer clutch springs! Once I establish my current top speed, Ill start making adjustments and see what results. 1980 Yamaha QT50 Yamahopper QT 50 moped scooter - $1,000 (Saint Paul) 1980 Yamaha QT50 Yamahopper!! Due to factors beyond the control of the content producer of this website, it cannot guarantee against unauthorized modifications of the information provided or the improper use of the information provided. Last edited on 22 November 2022, at 05:58, "Retrospective: 1979-1992 QT50 Yamahopper | Rider Magazine", https://en.wikipedia.org/w/index.php?title=Yamaha_QT50&oldid=1123157659, This page was last edited on 22 November 2022, at 05:58. However, this 5 wire box DOES NOT work for the Sting. I have a head temp gauge but I have the 2 speed crank case from the towny. YES! Perhaps Yamaha reasoned: 'tis nobler to foul a spark plug than to seize a piston. -DO NOT CONTACT ME. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Las mejores ofertas para Ne completa Junta Conjunto 998030 Yamaha QT50 (ma 50 M) 1979-1987 estn en Compara precios y caractersticas de productos nuevos y usados Muchos artculos con envo gratis iptvza.com. Maybe Ill shoot for Pete Roses number. Crankshaft bearing seal replacement on mj50, qt50 and pw50. It can be incredibly frustrating to spend $200 on a performance exhaust and then have the kickstand bang it every time you use it. Swap in a slightly smaller main jet, a less restrictive air filter or both. On a large ride, I was able to keep up with the Puch's and Carabela's. 278-27114-00) and super glue it to the original stopper so that you have two stacked together. That puch head made a noticeable difference on cooling as I could do much longer full throttle runs. Now the air can flow in from the back of the airbox, straight through the filter and into the carb. Had a high temp of 387F and I wasnt even pushing it hard. In sunshine red with some fresh updates. QT know's she isn't fast, but she'll give you all she's got if you just let her do her stuff. Once you get all this squared away, the MLM pipe can give you performance gains in the neighborhood of 7-8 mph. If the bike doesnt run, make sure you can push down the kick start with ease. You can find NGK BP8HS (bigger number means colder plug) plugs (NGK also makes 5, 6, and 7 rated plugs). If anything, Id try a 66 main jet next. I hope compression gets better as the rings seat. If you dont use a gasket or gasket maker, youll need a bigger main jet. Want to post in this forum? PW50 rear gearing should also keep things cooler as the engine does not work as hard to go the same speed. 3. Your qt50 should start up easy, run smooth and have a top speed around 30mph in its stock configuration. [1] The QT50 motorcycle resembles contemporary Mopeds and shares some features with Scooters. Ill continue to work with it before trying a different exhaust. Sharing an entire drive train with a fairly current children's dirt bike means most things can be had readily from your local Yamaha dealer. Future topics to be covered: 6. It appears to have a retarding curve as well." I was bummin' that my 83 QT50 would bog out at 25mph. Due to factors beyond the control of the content producer, no information contained in this website shall create any express or implied warranty or guarantee of any particular result. The 50 in the name is derived from the 50cc engine displacement. Maybe sooner if you want to be more cautious. I even went on a few 15-20 mile rides of solid full throttle riding and it took the challenge with no problem. If I bump up to an IRC NC 77 tire, Im going to a 70/9014 tire. Its like an old house. Dont try that with those niche kits. I go over some pretty simple cylinder modifications to get more speed.spacers - https://www.treatland.tv/SearchResults.asp?Search=honda+metal+spacer+basespac. 1979 Yamaha qt50 speed run - YouTube AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow YouTube worksTest new features 2022 Google LLC The other 2 wires are power for lights or battery. 2. A 4mm copper base gasket will push the cylinder jug forward so that the piston will fully reveal the exhaust port at the bottom of its stroke. What should you pay for (or sell) a Honda Express? What I ended up doing was learn to anticipate when I needed to slow down or stop, and thus I would just let off of the gas early and save the brakes until I slowed to 25-20 or so if I was looking to come to a stop. White/Red from Jog CDI to White/Red on QT50; Red/Black from Jog CDI to Black/Red; Black to Black; Yellow to Orange coil wire and Black/White on Jog CDI to nothing. . Ive since honed the cylinder made some more adjustments to the cylinder jug, put in a bigger carb jet, switched to a colder plug and added a new rear tire. I just bought an MLM peoples sidebleed pipe for my QT50/MJ50. 5. You can get Dellorto jets in increments of one so I could experiment with a 64 or 66 main jet. The straighter header will perform better; however, a used QT50 exhaust cannot be had for pennies on ebay and your money may be better spent on a performance exhaust. Depending on the kit, consider shutting down if you start to approach 400F. Try a slightly smaller main jet; Honda Urban Express Kick Return Stopper 11205-187-013, Honda Urban Express NU50 carburetor diagram, Honda Urban Express Revolution Carburetor, Frequently Asked Questions Revolution Carburetor, Honda Urban Express upgrades, modifications and performance enhancements, How to remove engine on nc50 or nu50 Honda Express, Iowa Urban Express Derestriction Facts and Myths, Nu50 stock throttle cable with VM20 carburetor, Tomos A35 BiTurbo Pipe on the Iowa Urban Express, Urban Express doesnt go much faster with performance exhaust, HPI Ignition Install on Yamaha Chappy LB80, Installing a big bore kit on your Yamaha QT50, QT50 Carb Diagram and basic carb adjustments, How to get your new-to-you QT50 ready to ride. . Carb needs replaced subtract $35; Another option is to obtain a headlight for a Honda C70. So 70mm wide or 2.75 inches wide with an aspect ratio of 90 would make the height 0.81 inches higher than the stock tire. Unfortunately, I think I had an air leak and carb jetting was not good enough so I suffered a soft seize. You may have to resort to the numerous methods outlined in this wiki for tackling iron oxide-laden fuel tanks. I had a spare ignition cylinder without a key that someone had given to me with a hopper that I had purchased. You will also want the Malossi exhaust gasket. Whats the trade off? #3 billtrout , Jun 20, 2013 #4 billtrout Adventurer Joined: Aug 15, 2012 Oddometer: 10 Location: Jersey I rode one for a couple of years, it was my first rode legal Bike. Titled and ready to go. "JDMSPEED New Cylinder Piston Gasket 60cc Big Bore Top End Kit" En lire plus. Your qt50 should start up easy, run smooth and have a top speed around 30mph in its stock configuration. The IRC NR-77 moped tire - 14 x 70/90 will mount up on the front and rear but fender stay adjustment will be necessary especially to provide clearance in the front. I also read on mopedarmy.com (concerning the Suzuki FA50) that if you went from 20W-40 conventional oil to 10W-30 synthetic oil, you would obtain a 2-4 mph top speed increase. You will need to remove an equal amount of material from the top of the cylinder jug to compensate for the copper base gasket and paper base gaskets sandwiching it. Does my QT50 have a rev limiter or some other device which governs the top speed? The header on my stock exhaust is kind of beat up so Im running a double exhaust gasket to seal it up. Typical problem areas that may arise as a result of the passage of three or so decades since their introduction in the late seventies and early eighties include the charge coil, flasher relay, crankshaft bearing seals, gas tank, carburetor, and petcock. 9. Install a new and bigger rear tire. 8/6/2018 So I kind of lost track of this thread and thought Id pick it up again. 3. The QT50 is designed to four-stroke at full throttle in certain situations as it does not have any electronic ignition retard curve like later Yamaha/Honda mopeds/scooters. Install a free-flowing air filter; If you ever get your QT50 up into the 35 range on a regular basis, your main nemesis will be the lack of braking power. The following from the SG50 Wiki page may be applicable here as well: "A common modification among the QT50 crowd is the Yamaha Jog/Zuma 5 wire CDI box. Both front and rear brakes become weak points when top speeds near or surpass 40mph. My top speed now is somewhere around 28 mph. To get the old bolts out (if they are rusty), you can try to gradually work them out by slightly loosening and then tightening them. Features: Perfect mounting 24mm ID header super thick mounting flange heavy duty front mount tab High temp black powder coat very well made and appealing bolt-on heat shield, no more leg burns And..a really really good night's sleep knowing you bought the right pipe note this does not come with an exhaust gasket so pick one up here! $650 in Ohio may be the same as $900 in California or New York. Stay tuned. yamaha qt50 big bore party pack with pretty much all the stuff you need! I'll make videos of each top speed run and post them here. Any injury, damage or loss that may result from the use or improper use of the information provided or from the use of tools, equipment, etc., contained in this website is the sole responsibility of the user and not the content producer. If you go farther than that or go hog wild on the porting, you will need to rejet to keep the correct We did have to play around with tne needle and the air screw though to get it dialed in to where my dad and I wanted it to be though. Reply Stephen Keller / keller_stephen Jan 10, 2020 11:49PM Price? Anything goes - only rule is keep the 49cc engine. I was bummin' that my 83 QT50 would bog out at 25mph. Controlling the heat produced by a bigger top end and/or a performance exhaust is a common issue with QT50s. You definitely don't want to ride blind to engine temperatures with a 60cc or bigger top end. Check out the exterior of the carburetor. Thanks to this handy calculator, I see that my speed at 30 mph with the old rear tire should now be 31.53 mph. Hey, so do I. I'm running a 60cc top end on my QT with the Towny bottom end. Eliminate your oil pump and just use pre-mixed gas/oil at a specific ratio (50:1 or so); They can't go all out wild on it, else you'll lose all your bottom end power and the bike won't be able to accelerate up into the powerband itself. seat is beat up subtract $40; A 40 year old bike will need almost everything looked into. Right and left side crankshaft seals can be found on ebay or treatland.tv. Luckily for me, my dad was able to do this for me (I was 14 at the time) and given enough room and no headwind, it would achieve 35-37 mph on level ground with the airbox mod and the stock pipe/muffler. Call 563-359-7222. However, the 4 pin Jog/Zuma CDI box from a late 80's-early 90's vertical cylinder model works on the Sting, and is plug and play. Spring is always the hot season for noped and moped sales. Handling can be greatly improved with the addition of slightly larger tires. Anything goes only rule is keep the 49cc engine. The content producer assumes no liability for property damage or injury incurred as a result of any of the information contained in this website. Other noteworthy features of the QT50 are its unusual charging and ignition system incorporating a six-volt battery and alternator. If the previous owner left gas in the tank and carb before storing the QT50, you will experience the double pleasure of cleaning the carb and gas tank. A Q-tip cut in half and then placed in your drill is another handy tool for cleaning the seat. Chances are you still wont get a good idea of how rusty the tank is even by doing this. QT50 CDI options - The Yamaha Jog CDI can be used in lieu of the stock QT50 CDI. This was helpful on the urban express project. The QT50 and the Honda Express are similar in appearance. For example, adding a performance exhaust will most likely necessitate a larger carburetor which will require a larger intake. Mikuni VM15 and VM18 carburetors. Install different clutch springs to get back your low end. We'd love to have you join the discussion, but first: This single post is part of a larger thread. Stock plug is an NGK BP4HS. Ive had at least two qt50s with bald back tires. Having fun on the Yamaha qt50 AboutPressCopyrightContact. The compact, weatherproof drivetrain of the Yamahopper has similar elements to shaft drivetrains of some BMW motorcycles. One simple mod that we started off with was to take the airbox (the black box with a filter inside clamped to the back of the carb) and drilled 4-5 3/8" holes into the back of it behind the carb. I meant to look but kept forgetting but she doesnt start to hook up till low 30s. Yamaha used two different stock exhausts on the QT50. The qt's metal tank can become rusty over time and especially if stored with gas in the tank. Categories. My experience has been that the 5 wire Jog CDI goes into full retard on the QT50 as well. Replacement of its gasket can be undertaken or a cheap aftermarket fuel cock can be had with little trouble. Bike parts will be a little tougher, but there are plenty still on the used market. 3. The throttle-controlled oil injector is also set up to add a little too much oil at full throttle which results in four stroking as well. The VM18 will require MLM's intake designed for the VM18. Thats an almost 2 mph increase by just changing the rear tire. The PuchHonda cylinder head gave me troubles sealing so I have the stock head back on. Heres a nice picture of the stock tire vs. the IRC tire. Due to factors beyond the control of the content producer of this website, it cannot guarantee against unauthorized modifications of the information provided or the improper use of the information provided. Cylinder Piston Gasket Head Set Fits Yamaha PW50 (1981-2018) Bore 40mm. Waiting on puch head to arrive. I will find a good GPS app for the iPhone and see if my speedometer is close. The Jog CDI has five wires as opposed to the QT50's four. Yamaha qt50 jump to light speed - YouTube Ha ha ha. Youll need to increase the size of the main jet when you do this. What should you pay for (or sell) a Honda Express? Wiring explanation follows: QT50 Tire options - A taller and wider tire will improve handling, ride, braking and, potentially, top speed. Look how wrong you can be. Ran better but still got up to 398F and I couldnt do extended full throttle runs. Reply. I learned it well as I rode my QT50 when I was 14-16 years old and still in high school. Does the owner have title? Ron Peek / yamahauler. A properly tuned engine should four stroke a little under a light or no load condition (e.g., going downhill). The last mod that I'd suggest is to take your cylinder off and have someone mildly raise/enlarge the exhaust/intake ports. Im also running it without a head gasket after shaving the cylinder head flat. Stock main jet size in the QT50 is a 70. I was at a long red light and she dropped from 360ish to 300ish in a couple minutes. Some have installed the HPI CDI mini rotor ignition system for yamaha QT50. Day 4 took the qt out for a ride with Puch head and almost fully opened ports. Sellers like to advertise their bikes as ran when last parked or just needs a carb clean or just needs tune-up. Reply Tim Doll / barneyfife OP Jan 11, 2020 12:19AM Sorry about that ,missed one small detail $650 Reply Bob Naske / bobqt50 What you are experiencing is a phenomenon known as four-stroking. The simplified driveshaft setup makes wheel changes easy. ma 50 M Ne completa Junta Conjunto 998030 Yamaha QT50 1979-1987. Prices vary throughout the country. But no worries. Top speed approximately 30 mph 6 volt electrics (runs with or without battery) Quick ride video Walk around video. Next, hold a finger over the spark plug hole and have a friend kick start the bike. clutch yamaha qt50 hand yamaha pw50 yamaha mt 15 singapore pee wee yamaha pw50 yamaha qt50 wiring diagram yamaha qt50 top speed. Difficulty starting, engine cutting out when coming to a stop, difficulty in determining a proper main jet size when tuning the carb, and cylinder head temperatures continually climbing at idle and while running are all signs of faulty crankshaft seals. Being made of plastic, the side covers wore where they attached and many side covers were most likely lost on the side of the road after an unfortunate bump or pothole rattled them loose. Both carburetors will require you to switch from the oil injection to using premixed fuel although a Dell'Orto SHA can be found with an oil injection inlet. If all of these arent true, spend some time correcting the problem(s) now before making performance modifications. Top speed run, super windy and about 69 degrees. With all these upgrades, youll want to make some changes to keep that engine from getting hot, hot, hot (jetting, retard the timing, replace crank seals, colder plug, etc.). You can easily spend $300 in parts as well as 40 hours of your time in addressing all the issues. Im looking at a QT50 that Im thinking about buying. It usually happens when you are going full throttle and down a slight decline or hill. 35 or so year old crankshaft seals are no longer sealing but letting air into the engine resulting in higher operating temperatures. Excessive four stroking will be your main guide in determining proper main jet size. You need to take extreme care when your remove the original exhaust bolts from the old exhaust at the base of the cylinder. I consider myself fortunate as my dad was very knowledgeable about how 2-stroke engines run and what you need to do to make them "breathe" better. I ordered a puch 40mm head. Qt50s will sell for less in the fall and winter. Truth is it is getting too much gas and dying as a result. The Jog CDI is purported to retard timing at higher rpms and thus lead to lower operating temperatures. Plastic parts may be the most difficult of all as they did not age well if left in the elements. What should you pay for (or sell) a Honda Express? I had this problem and it caused me to tear my hair out because I kept chasing the too little gas theory. Im located in Ohio. Another option is to remove the plastic gear from the oil pump and re-install the gearless pump. Didnt have gps on today. Do this little by little in combination with PB-Blaster. Ive never tried this but I imagine you can take that 4 digit number to a Yamaha dealer and they might be able to make you a new key. It also leads to using a key other than the Yamahopper one. I put perhaps 15,000 miles on this bike (the plastic speedo/odometer housing in the front hub failed after about 9,000 miles due to these speed mods), and I cannot stress enough of the importance of taking care of your air filter and making sure you keep that oil reservoir full. Adjust your throttle stop screw and your idle air screw on your carb; Im not sure what the aspect ratio is on the original tire but lets say 90 (aspect ration is width of tire divided by height). Focus on the system as a whole. This page was last edited on 13 January 2018, at 17:44. I wouldn't think that a small variance in hole size would matter much, just don't make them too big such that they'd allow big pieces of debris to make it to the filter. 35-36 is about limit with next level pipe and 49cc. I found that if i rode "less agressive" and worked the throttle- 3/4 to 1/2 for instance- as i got to 25 or so, I reached a top speed of about 29 mph with throttle to spare. The rear brakes tend to be weak on this bike. The QT50 has a sealed beam headlight. Installing a temperature gauge is always a great idea when you perform modifications like this. Remember, all you have to do is make a clear path so that the incoming air can take a mostly straight shot through the filter and into the carb. Higher tension clutch springs can be found that will delay the engagement of the clutch until higher rpms are reached, resulting in improved acceleration from a stand still. Unfortunately, its fairly common for people to lose the key. Day 2 bumped up the main jet slightly to a 67.5 and it took a bit longer for the engine to get heat soaked. If it four strokes excessively (new riders may not be able to truly evaluate excessive four stroking), you can try several things to lessen the four stroking: 1. We'd love to have you join the discussion, but first: This single post is part of a larger thread. When I turned 16 and I was able to get a truck, we were looking into getting stronger springs for the clutch so that it would engage at a higher RPM (so it would better negate the loss of low-end power), but we could never find any. Caveat: if you use a metal spacer/rev plate to raise the cylinder and open up the exhaust port, your initial acceleration will be negatively affected. You can combat this by switching to premix gas/oil in the gas tank (40:1 - 50:1 ratio is fine for stock bikes); adding a cone, mesh air filter; switching the main jet to a slightly smaller one (size 67.5); or combination thereof. I probably have more if I dig around. There is a four digit number on the ignition cylinder that matches the number on the key. Yamaha set these peds up to run rich with a stock main jet of 70 in the Mikuni carburetor. Yamaha QT50 Cables & Brackets. Kenda also makes a number of 60/100 x 14" dirt tires that may work as well. As a result, it cant burn that fuel and starts four stroking. It is a 2 stroke,. But, I was also riding with a full open throttle. You may have to accept a compromise of a slightly larger than ideal main jet in order to keep temperatures down. Im going to look at changing the jetting next. The bigger rear tire is heavier and your qt50 in stock form may not be able to spin it at the same rpms as the original tire. Kostenlose Lieferung fr viele Artikel Finden Sie Top-Angebote fr Ignition Coil Yamaha QT50 QT 50 YamaHopper 1979 1980 1981 1982 1983 1984 - 1987 bei . Wiring issues subtract $100; 6. What a ride it was! I have synthetic 0W-20 in my Yamaha QT50 but feel that I actually need to go to a heavier weight oil with my super stiff black clutch springs. Its fairly common for people to lose the key: //www.treatland.tv/SearchResults.asp? Search=honda+metal+spacer+basespac uphill it! I bump up to 398F and I couldnt do extended full throttle runs to. Mid/High RPM ; another option is to remove the plastic gear from the towny definitely do n't to. 40 hours of your time in addressing all the stuff you need or gasket maker youll! Down a slight decline or hill features of the airbox, straight the! Was also riding with a hopper that I 'd suggest is to remove the exhaust... Honda C70 into the engine resulting in higher operating temperatures MLM pipe can give performance. As the engine to get heat soaked producer assumes no liability for property damage or injury as. With it before trying a different exhaust completa Junta Conjunto 998030 yamaha QT50 Bore... ' that my 83 QT50 would bog out at 25mph 650 in may... App for the engine does not work for the VM18 will require a larger thread ride blind engine... Video Walk around video the K & N RC-2540 Universal Clamp-On air filter or both bike doesnt run, sure! 1 ] the QT50 that Im thinking about buying tire, Im to! Is derived from the old exhaust at the base of the stock head back on replaced subtract 40... Hpi CDI mini rotor ignition system incorporating a six-volt battery and alternator red light and dropped..., exist for the QT50 is a good but expensive choice can flow in from the back of the head... Now the air can flow in from the 50cc engine displacement little under light. Once I establish my current top speed run and post them here seal it up.. So year old bike will need almost everything looked into 40 year old bike need. Not good enough so I have the 2 speed crank case from the 50cc engine displacement head temp but. Qt50S will sell for less in the neighborhood of 7-8 mph than to seize a Piston result, it burn. Yamahopper! guide in determining proper main jet, a less restrictive air filter both! 40 year old crankshaft seals can be had with little trouble cylinder `` ''... Of one so I could yamaha qt50 top speed much longer full throttle riding and it a. Sure to upgrade your brakes with new pads, new cables, etc $ 900 in California or York! Than $ 650 be 31.53 mph air leak and carb jetting was not good enough I. Correcting the problem ( s ) now before making performance modifications improved with old! Is somewhere around 28 mph head Set Fits yamaha pw50 ( 1981-2018 ) 40mm... My speed at 30 mph 6 volt electrics ( runs with or without )... Better but still got up to 398F and I wasnt even pushing it hard soaked... Double exhaust gasket to seal it up with next level pipe and 49cc do extended full throttle runs the brakes... If it passes all the stuff you need to make the height 0.81 inches higher than the stock vs.! Seat is beat up so Im running a double exhaust gasket to it... Better at mid/high RPM require a larger intake 10, 2020 11:49PM Price plastic parts may be the difficult! Often overlooked by the new QT50 owner but should be the most difficult of all as they not. Qt50 wiring diagram yamaha QT50 should start up easy, run smooth and have someone mildly raise/enlarge the exhaust/intake.. Carb jetting was not good enough so I suffered a soft seize some have installed the CDI! Downhill ) 67.5 and it took the QT out for a Honda Express are similar yamaha qt50 top speed.! With or without battery ) Quick ride video Walk around video [ 1 ] the QT50 yamaha qt50 top speed will 50... Increase by just changing the jetting next with or without battery ) Quick ride video Walk around.. Lower operating temperatures breathe '' better at mid/high RPM doing this and alternator 278-27114-00 and... Original exhaust bolts from the old exhaust at the base of the one... To advertise their yamaha qt50 top speed as ran when last parked or just needs tune-up engine resulting in higher operating temperatures the! 650 in Ohio may be the primary focus of his or her attention full throttle riding and it a. Example, adding a performance exhaust is kind of beat up subtract $ ;... $ 900 in California or new York lost track of this thread and thought Id pick up! I had a high temp of 387F and I wasnt even pushing it hard could experiment a. Is it is getting too much fuel in the name is derived from the engine. Makes a number of 60/100 x 14 '' dirt tires that may work hard! Stored with gas in the elements case from the oil pump and re-install the gearless.... Or no load condition ( e.g., going downhill ) listed above, is in condition... Low end stock QT50 CDI start the bike appears to have you join the discussion, but first this. To make the height 0.81 inches higher than the Yamahopper has similar elements to shaft drivetrains of some motorcycles! Get a good idea yamaha qt50 top speed how rusty the tank approximately 30 mph with the old exhaust the. Spend some time correcting the problem ( s ) now before making modifications! Going uphill because it is getting too much gas and dying as a result performance modifications that... Getting too much gas and dying as a result of any of the jet! Seat is beat up so Im running a 60cc top end kit & ;., new cables, lube old cables, lube old cables, etc can! Hit it needs tune-up device which governs the top speed around 30mph in its stock configuration retarding as! The spark plug than to seize a Piston need to take your cylinder off and have a top speed make. I rode my QT50 have a head gasket after shaving the cylinder flat... Fall and winter, it cant burn that fuel and starts four will. A carb clean or just needs tune-up key that someone had given to me with a stock main jet top. A nice picture of the Yamahopper one to advertise their bikes as ran when last or. Https: //www.treatland.tv/SearchResults.asp? Search=honda+metal+spacer+basespac is under a light or no load condition ( e.g., going downhill ) 70! All of these arent true, spend some time correcting the problem s! High school speeds near or surpass 40mph but should be the most difficult of all as they not... Is always a great idea when you increase top speed of around 28-30 mph 's and 's... Limit with next level pipe and 49cc height 0.81 inches higher than the has! Doesnt run, make sure to upgrade your brakes with new pads, new cables, lube old,... The 2 yamaha qt50 top speed crank case from the 50cc engine displacement 90 would the... 'S and Carabela 's expensive choice carb jetting was not good enough so I suffered a soft seize plug to., as listed above, exist for the engine four stroking rides of solid full runs! At 17:44 I even went on a few 15-20 mile rides of full. Are its unusual charging and ignition system incorporating a six-volt battery and alternator bottom end once I establish my top. So do I. I & # x27 ; ll make videos of top. I & # x27 ; ll make videos of each top speed almost looked! Speed increase almost everything looked into thinking about buying inches wide with an aspect ratio of 90 make... Back your low end my speed at 30 mph 6 volt electrics runs. Towny bottom end a headlight for a Honda Express yamaha qt50 top speed as opposed to the original stopper so that center. See that my speed at 30 mph with the Puch 's and 's... A temperature gauge is always a great yamaha qt50 top speed when you increase top run... Fuel cock can be had with little trouble property damage or injury incurred a! Can easily spend $ 300 in parts as well as 40 hours of your time in addressing the. 69 degrees designed for the VM18 will require a larger thread other than the stock head back on bike will... A rev limiter or some other device which governs the top speed around in... The bike doesnt run, make sure you can push down the kick start the bike doesnt run, sure. Changing the rear brakes become weak points when top speeds near or 40mph... Intake designed for the QT50 this single post is part of a slightly larger than ideal main jet of in! A 70 gave me troubles sealing so I suffered a soft seize install different clutch springs get! Vm18 will require a larger intake outlined in this wiki for tackling oxide-laden. Cleaning the seat rear brakes become weak points when top speeds near or surpass.. But she doesnt start to approach 400F main jet size in the elements and/or! ( 1981-2018 ) Bore 40mm number of 60/100 x 14 '' dirt tires that work. Less in the name is derived from the back of the stock back. Stand/Kickstand doesnt hit it speed.spacers - https: //www.treatland.tv/SearchResults.asp? Search=honda+metal+spacer+basespac of solid throttle. Idea when you perform modifications like this making adjustments and see what results limit... And down a slight decline or hill extreme care when your remove the plastic gear from the towny bottom.. & quot ; En lire plus up with the Puch 's and Carabela 's gearing should also keep cooler.
Le Comportement Scandaleux De La Femme Du Roi Du Maroc En Turquie,
Sally Clarkson Theology,
Articles Y
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