It looks like I got a ball bearing in my motor somehow. I've got tons of perfectly round dents on my left piston and on the dome. I never had a loss of power, I have no idea when it happened, or how long it's been like that. I pulled the head just to put higher compression domes on it. I put it back together and rode it anyway. And it's never been faster thanks to the new 19cc domes and 110 octane fuel.
My biggest concern is where the bb came from, and where it is now. I hopeing I blew it out the tailpipe. Someone sugested that I may have a bearing in the crank going out, and that's where it came from, but I don't think there's bearings that small in the crank.
Here's the pictures
More pictures at sudweeks.net/banshee
Should I be worried about this? Do I need to tare it down and rebuild? Replace barrings on the crank? The bike is 12 years old.
Thanks.
-Josh