[Quinc]

Anyone have a recommendation or know if it makes much difference? giving the top end a refresh with new rings and gaskets, polish the exhaust port etc. I want to keep the trike slow-ish for the kiddos, but also have enough umph to haul me up some hills. So thinking about installing a high comp piston while i have her apart.

 

[dirtbkr188]

staying with 70cc or looking to go with an 88cc kit?

 

[Quinc]

I am thinking if I can get a high comp piston I will do it. Not much more expensive then a new set of rings. For the cost of doing an 88cc kit right it is more cost effective to go to a lifan 125.

 

[dirtbkr188]

I don't think you'll find a stock 47mm high comp piston that'll fit the short-rod ATC engine, but the basic 88cc kit is only about $125 or so, as seen HERE

 

[Quinc]

125$ isn't too bad, but how well does the kit work with everything else being stock?

 

[dirtbkr188]

The TB Parts 88cc kit is compatible with the stock ATC head and exhaust, for keeping it quiet. The stock carb should work with the kit as well. Most times, people upgrade to the TB Parts 20mm ShengWay carb for a little better performance.

 

[tmas]

You might want to consider a heavy duty oil pump too.
tmas