I just replaced head gasket...torqued bolts as much as I could without busting em. I get same problem--air leak..I already swapped carbs and new intake gasket, o ring..... same thing ....sprayed around for leaks, cant find any. Im now thinking its base gasket which I dont have another one. If I pull cylinder and put on some non hardening gasket sealer, will I have any trouble sliding cylinder back over piston rings?
Ive built a bunch of bikes but never had a base gasket sucking air, but Im out of ideas....plug chop at WOT, plug is off white. I get no idle unless choke is halfway.....take off choke and she starts running away. Its running too lean for me to ride until I figure air leak. Ive got a lot of miles on this engine, so maybe base gasket is gone....What else can it be? It does seem a little wet in spots.