Hello everyone! I haven't been on here for quite a while...

I took the head off of this quad (110cc TaoTao mini) because of some really loud popping. I discovered that the head nuts managed to work themselves loose causing the problems. During my discovery, the piston, valves, and head were covered in baked on carbon about 1mm thick. I am planning on to sandblast the head, but I wanted to get a high compression piston for it. I'm not that familiar with the internals of the cylinder and piston, so bear with me The piston is 52mm in diameter, wrist pin 13 mm, and bore is about 52.5mm. Does anyone here know where I can get a hi-c piston for this?

 

Not sure what you got for a motor. Might take a look at these sites.
Pit Bike Engine Parts - Piston Kits - TBolt USA, LLC
Cylinder kits and Big Bore Kits

 

Pics of my overhaul... Those links brought me to the right place! Thanks! However, I'm looking for a high volume oil pump. There was a nasty oil screen; the rubber border was all gooey and stuff. I think I could drill some holes, put some fittings in and add a inline oil filter? I was also wondering if I could use a inline fuel filter to filter oil?

 

Hmm, looks similar to my engine, only problem is if you want to go for a high c piston you need to upgrade the head and bore to cope with the extra stress. Im not to fimilure to high c setups i just tend to run engines how theye were designed to run.