hey I have a 2008 rzr 50 inch trail edition , new top end (wiseco) stock compression ratio ,with valve job and 4 new valves last year on labor day less than 700 miles on it since , 40 psi in one cylinder 80 in the other cylinder no oil burning it runs rich the digital wrench cleared all of the codes after installing a new crank sensor the digital wrench said it was bad ,no dust in the motor no dust in throttle body it seems like it was using coolant but I did have a small leak from the cab heater ,I still have not done a wet compression test yet im thinking head gasket but no overheating issues so Im not sure any ideas and input would be great