noise

Hello, I have a 80cc CDH Power with less than 200 miles. I'm still using the 16:1 mixture, however recently it began losing power specially when going uphill and the other day it completely left me stranded. I had already cleaned the carb a couple of days before that. Today after changing the...

Hi, I'm new to motor bicycling so I thought I'd get some advice before I start turning screws lol. I've recently stripped and remounted my girls gt avalanche with an 80cc Skyhawk for a new paint job. All is back in place, it starts and runs well. However, I'm heaing a screeching and clanking...

Just finished the 47cc install of the generic Chinese kit. Oval, not too bad with some minor tweaks. Took some playing with the carb settings to get it right. Now, it's nothing but fun and waiting out the engine burn-in so I can open the throttle some more. ;) Question: Has anybody added an...

Ok so I have searched the topic, and couldn't find a solution, when riding my bike, it will run fine from 0-19 but as soon as it hits 20 the engine begins to make a noise, I am not sure if it is the engine, or the chain scraping against the clutch cover, (inside of the cover is grinded to ****...