teched
New member
I have a 1973-74 GP292f that my son has been riding around the yard. It has been running good so we we took it on a 6 mile ride. It was running good but blew the head gasket. Upon inspection I found the piston starting to pit down to the ring on the exhaust side. I found a piston on ebay, but it says it has a 73mm bore. I measured mine and it looks like 70mm. I just want to make sure i get the right piston/ring. Thanks in advance. -Ed
teched
New member
Bump!