4 stroke

I have a 80cc motor I've purchased from venice motorbike. When I put motor on it hits the bike sprocket be for it can slide into place:-||. The sprocket is to big. I read about getting longer stus for the mottor and using motor mounts but also read not to use motor mounts. Are there any other...

If i have the entire kit that came with my 2 stroke engine, and wanted to get a 4 stroke, could i just get the engine and use all the parts i still have, sprocket, throttle, clutch, everything, on the new engine. and if so, would i go any slower or faster with the sprocket that came with the 2...

Greetings to you all, thanks for having me here apart of this awesome and extensive site. I have been interested in buying an air filter for my 49cc Hua Sheng engine. And I came across this filter which I probably will buy in the end...

I have a chance to pick up a Lifan 97cc from a doodlebug. I have checked out the Lifans and they seem to be about the same as the predators. This guy is selling this engine with the clutch that came with a doodlebug minibike. My question is, is this pretty much the same as what is being used...

Hi Guys. I have been doing some research on engines for my new build that you can see in the board track section. I was wondering what are your thoughts about the thats DAX KMT clone motor. It is 500 dollars, but you will be getting the 9 hp and so on. Maybe you could recommend something...

I bought a 4 stroke side wheel mount kit recently, but decided it was to off balance. I then bought a mounting plate and a gear box. I installed everything and the bike started up fine, but adjusting the carb is proving to very difficult. I'll be riding fine, and then the bike will just die. It...

Well, after witnessing the thunder of Scotto's hulkster at the last willow race, I was hooked. I know I know, i have been watching the unimited class race for a couple years now, but something clicked. Maybe Scotto's ubiquitous smile, the superhero green paint job that one can only Marvel at...

I'm really lost here guys help would be awesome. I have a hs 4 stroke motor with the grubbee 4g tranny with the 100 tooth sprocket and no freewheel bearing. I was running a 50 something sprocket in the back and was converting to a 36t sprocket. Once I got the 36t sprocket on the rear wheel I...

Sorry if this is a dumb question. But do i need to adjust my air/fuel mixture after installing the sbp air filter? My bike was idling fine but was boggind down for a couple seconds when i had it at full throttle. I also have a straight pipe exhaust. thank you .spr.

Hi, I'm brand new to this. I've read a lot on the web, but most articles seem to favor whatever they are selling. I want to build a bike, and I'm not sure if I should go 2 or 4 stroke. I know the 4 stroke is more $, but would I get more torque on hills, etc? Are they substantially...

I am abandoning my 2 strokes in favor of a 4 stroke. I just ordered a Honda GX35 with a Staton Friction Drive kit. After much research I have come to the conclusion that this will be a nice daily driver for me. I plan to put it on my Micargi Rover (replacing my 2 stroke China girl). It won't...

Greetings all (my 1st post!) I've gotten hold of a factory recon wheeled string trimmer, a 30cc 4-stroke from Ryobi, model T430. The powerplant is the version with the metal camshaft, not the older plastic-cam version that melted :). It has an overhung (single-ended) crankshaft, and the...

Hi All I just got my bike running and can't be more pleased. I absolutely have a ball riding it to work and around town for errands. Basically bone stock huasheng 4 stroke besides the Pirate Hub Adapter. Let me know what you think, any advice or tips, or if you want to cruise up the streets...

I'm going to be ordering a 4 stroke engine kit off of Bicycle Engines, Motorized Bicycles, Bicycle Motors, Motored Bikes: 2-Stroke & 4-Stroke Kits! and I want input on both 4 stroke engine kits. What one lasts longer? Less problems? Etc 4G T Belt Drive 4 Stroke Engine Kit 49cc 4G T Belt...

Hello everyone, A friend recently showed me some "Derringer" bikes -- and from the sounds of it, a moped/motorized bike is what I need. Currently my vehicle (a 1988 Cadillac) gets around 15MPG. As a college student, driving around the campus end of town gets costly, fast. Because of that...

hey everyone, im planning this build and i was just wanting some input on top speed, acceleration and tips on if this will be a good little setup or some extras that will help with performance. im trying to get at least 45mph and semi decent pull from dead stop. bike motor kit i know it comes...

You cannot beat this amazing price for this new kit plus over $100 in extra parts (things like in-frame tank, wide cranks, etc.) EZM Motors Silent Drive 4 Stroke Engine & gearbox kit - eBay (item 160518574224 end time Dec-19-10 10:10:07 PST) VERY low starting price of $489 plus shipping...