Engine still in good shape. I removed carb to have someone take a look at it and carb stil in good condition. So I re-installed carb plus replaced impeller. But now engine won't start. Can someone help!!!!!!. had done compression test on both cylinder, cylinder 1 @ 90 psi, cylinder 2@ 100 psi. Produce sparks when turning ignition key and I have checked for gas flow to Carb is ok. What is the proper setting for Needle and Seat. THANKS FOR ANY HELPS.