did a compression check, only 50 psi. But I used a long hose, with out the carb or tail pipe installed. Plan to recheck tomorrow.
Pulled engine.
Pressure tested and have a big leak on crank seal, flywheel side.
Pulled head off and piston still looks new(just black).

 

you should be reading at least 100 psi for it to run fine and w/ no leaks.

 

You never did mention which 4 wheeler you have, just curious.
A J

 

A slight amount of end to end movement is OK,it is when You get up and down or front to back movement that You have to pull the bottom end for.