piston and cylinder help!!!

Ok so I bought a used pocket bike off a dude on craigslist for 80 bucks. Everyting on it is stock but the engine was in need of a carb clean, piston and cylinder head. And in the process of trying to put the piston back in the cylinder one of the piston rings broke I was wondering y is the fit soo tight. It seems like its impossible to re assimble it without a piston ring compressor tool. Any help please!?

if you look at the piston there is a pin in the ring groove where the
end of the rings go
if you dont get what im on about i will snap a pic or 2

As said above, the rings fit into the groove on the side of the piston and can be squeezed in so that they under a bit of tension. This 'spring' allows them push against the cylinder walls and ensure the combustion chamber is sealed in order for an efficient combustion cycle.

When i rebuild a top end, i put a bit of 2-stroke oil on the rings and at the base of the cylinder to help the piston glide into place. Don't use a lot of oil, just enough to lightly coat the surfaces.
Once you have some oil on them, compress the rings with your fingers as much as you can, and with a little bit of persistence and gentile persuasion the rings and piston should slide into the cylinder head.


Hope this helps you out


-James

__________________
Pocket Racing Bikes-
www.PocketRacingBikes.biz

Lakeside