Tyler6357
Well-Known Member
Hello everyone, I'm still very new here. Here is my situation. I decided to put a motor on my old mountain bike a few months ago. Unfortunately, I got a cheap 66cc/80cc 2 stroke China special. It was the only 2 stroke engine I could find that would ship to CA. I have driven it only 500 miles and today while I was coming home it totally lost power and started backfiring. I adjusted the idle screw to get it to stop backfiring but it just has lost its power, I limped it home at about 11mph. I figured it was a fuel problem so I took apart the carb but everything looked to be working fine. I then thought the problem could be that the muffler might be starving it because I could hear loose parts inside so I took apart the muffler and tightened the screws that had become loose. However when I took the muffler apart I found several small medal balls that look like ball bearings. I think these must have gone through the cylinder and out the exaust and got stuck in the pipe. I haven't taken the head screws off the motor yet. I haven't looked at the cylinder or anything yet. Have I blown something inside the engine? Is it at all worth trying to fix? Keep in mind that I got the entire kit, with the engine, for only $165 shipping included. I'm not a mechanic! Is it pretty easy to replace these ball bearings? Can I purchase these bearings and replace them myself for cheap or is it not worth it?
Thanks to all who respond!
Ride-on
Thanks to all who respond!
Ride-on