wont start

I bought a used motor from a coworker. I have replaced the CDI, magneto, throttle, carburetor, clutch (the handle/cable and camshaft/ball) and drive chain. I have spark. It seems like the new carburetor is operating as intended, as when I push the little button on the side the chamber floods...

Ok, I know I'm going to get some **** for this but I ran straight oil now she won't start, it'll pop and fire every 3 rotations of the pedals. I took the head off, cleaned it out with gas and cleaned the carb. No plugged jet. I'm at a loss of what to try next, I've dumped the old gas and...

Hi All, Let me try to explain my problem in as much useful detail as possible here. I'm not the most savvy mechanic, although this bike being quite fun and a pain in the ass has taught me a fair deal so far. I've been riding a seeutek motorized bike mounted on a Schwinn for approximately 100...

Hello Motor Bicycling.com I'm Matt, a new member to this forum, however I've been working at this motorized bike for close to 3 years now and I've only got it running a hand full of times unfortunately. First a little bit of background about the bike. I first purchased the Huasheng 4-Stroke...

Hey there. I have an 80/66 cc 2 stroke engine with a no spark problem. I have replaced my magneto and spark plug and even got an hd lightning cdi. Still no spark. Gap is at .025 on spark plug. Readings on ohm meter are consistent with a good ignition system. Im stumped and a little outside help...

Hey all, so I have a major issue! I just spent days creating this amazing build go to start it today and noting... Ive got spark, compression, and fuel. My timing is at TDC. I dont have any leaks at the intake, or anywhere as far as i can tell. I dont know the only name i can find on the motor...

I'm new to the whole motor bicycling world and taking it day by day. I can use all advise I can get. Here's my problem.... I've been riding around town with no trouble what so ever for the past week. Then I head out today and I cant get the motor to turn over. I pedal and pedal and when I...

First off, thanks to all who post and reply with feedback it's much appreciated. So I have a brand new Skyhawk 66 cc motor and have successfully mounted the kit to an awesome lime green cruiser. When I take it out for its first ride, it kicks on for 1.5 seconds and then dies. I have spent...

Hey, today I finished my 2-stroke 80cc/66cc motor build. However, the problem is when I try to start it. When the clutch is pulled back I can get pretty good speed with it however, when I release the clutch and engage the engine the rear wheel stops so suddenly that I cannot even pedal for more...

Hello everyone, this is my first post about problems I've been having with my bike. I have a Grubee SkyHawk 66cc 2 stroke motor on your typical beach cruiser, and it seems like there is always something wrong. I've been able to fix all problems just with a little tinkering up until my latest...

hey guys, my bike wont start :( its brand new and ive used it a few times, but it hasnt started since my 2nd ride. any tips on what it could be?