sounds interesting...have you ajusted your clutch?...if you pull in your cluch handle, the bike should roll freely...if you let it out it should not be able to move...you should have to pedal a little bit before you pop the clutch...does your idle stay steady at idle...?as for oil i have tried a lot of different oils...what your running is excellant oil and i believe is 50 to 1 after break in...the best regular oil i've used was pennsoil...2 stroke...i now use opti 2 or i get it from us2oil...you can get this on ebay...just punch in opti-2 or us2oil..i think its the best yet...so far...ha....remember these engines are cheap...2 strokes....if you keep them sealed up good you will be fine...make sure you check all your nuts after evey run...you should run your head bolts at 12 lb...what i do after break in, i put goop on all the nuts...intake,motor mounts...not exhaust...that stuff is strong and holds great...as fas as gasket sealer i use black permatex on the intake and black where carb slides onto the intake...i use gray or copper on the exhaust...well have fun but be carefull...keep a eye on the frame and the nuts on the engine...any other ?'s you have ask...i'm not the best but i've put 3 of these things togeather ...and there still up and running....if i cannt help you there is pleanty of people 0n the forum that can...see ya Dennis