Im stumped on the motor i bought and built i geuss im over looking somthing.. Story is that i seen the motor run. Ran good stator side crank bearing when bad. Then I bought the motor cut off old bearing pressed new crank bearing on put it all together on my wheeler with new gaskets, crank seals, rings and head O rings.. First time staring motor 3 kicks with both chokes on purred like a kitten runs great with chokes off... Went to break it in noticed only running on one cylnder. Run it for a wile and it ran good but it would just bogg in the powerban. Swaped pulg wires checked fire every thing is good.. Swaped over carbs, cleaned filters still same cylinder not running.. Fresh 110 Gas timing on +10 like someone said had to be on.No vibes from crank Did compressing check 100 PSI on both cylinders.. (also what Oct is good for that?) Anyone got any ideas.. Thanks everyone ready to see this thing eat the 18'' holeshots off