97_banshee Posted August 21, 2009 Report Share Posted August 21, 2009 i was riding and the motor backfired.. and sounded like it was suckin air.. so i took the carbs and everything off thinkin it might be a reed problem.. wasnt anything wrong with the reeds.. i took the plugs off to chjeck compression... it has basicly no compression on the one side.. what the hell did i do Quote Link to comment Share on other sites More sharing options...
ELKARACING_SHEE Posted August 21, 2009 Report Share Posted August 21, 2009 dang i had my old one back fire but i immediatly shut it down and white smoke was coming from the pipes, so i let it sit for 2 hr then tried to ride it again but nothing happend no back fire no nothing Quote Link to comment Share on other sites More sharing options...
SAVAGE420 Posted August 21, 2009 Report Share Posted August 21, 2009 Sorry to say jesse but it sounds like that one side is toast, pull the head off and have a look see. But im warning you its proly not going to be a pretty sight. Hope the Nikasil on that cub is not scored up any or its off to millinum they go :biggrin: Did you do a leak down when you put it together? Check squish? What comp, timing and fuel did you run? You re jet properly after you went to the OOF cpi's? Quote Link to comment Share on other sites More sharing options...
97_banshee Posted August 21, 2009 Author Report Share Posted August 21, 2009 ran 110 octane @ 32:1..... jim said her checked it all when he put it back together... i took the intake off and looked inside.. the piston looks fine... it wasnt dark or burned or anything... Quote Link to comment Share on other sites More sharing options...
banshee_terror_ Posted August 21, 2009 Report Share Posted August 21, 2009 the piston rings probly got worn down.. idk y but it happins.. if you figure it out pm me please same thing happined 2 my bike. except it never back fired... i comp tested it one day and i was 90 60..... thats really bad Quote Link to comment Share on other sites More sharing options...
SAVAGE420 Posted August 21, 2009 Report Share Posted August 21, 2009 IMO, you should have checked for leaks with a leak down tester also jess...pull the head off and let me see...its 10 nuts bro..simple Quote Link to comment Share on other sites More sharing options...
97_banshee Posted August 21, 2009 Author Report Share Posted August 21, 2009 ill do it tomorrow.. i dont have lights in the garage... i needa pull the gas tank off to do that dont i?.... give me a better view Quote Link to comment Share on other sites More sharing options...
SAVAGE420 Posted August 21, 2009 Report Share Posted August 21, 2009 ill do it tomorrow.. i dont have lights in the garage... i needa pull the gas tank off to do that dont i?.... give me a better view Nope you just have to push and wiggle it around as hard as you can :laugh: :laugh: No you don't have to pull the tank off...its easier with it off as theres more room to work, but you can pull the head of in 10 mins after you drain the coolant first. Simple job man. Quote Link to comment Share on other sites More sharing options...
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