MustangK Posted July 14, 2014 Report Share Posted July 14, 2014 So I have been ha ing alot of problems with my new shee. .. after alot of tests I found I have a blown cylinder based gasket or some sort of air leak in that area. What problems or symptoms could this create? Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted July 14, 2014 Report Share Posted July 14, 2014 A blown up engine. Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 14, 2014 Author Report Share Posted July 14, 2014 Lol well its not blown up so what else? Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 14, 2014 Author Report Share Posted July 14, 2014 It was running bad and wouldn't rev past 1/4 throttle Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted July 14, 2014 Report Share Posted July 14, 2014 if you have an air leak and you know where its leaking I suggest fixing it? Not real sure what else your asking. Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted July 14, 2014 Report Share Posted July 14, 2014 Do you think you have an air leak or do you know you do? Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 14, 2014 Author Report Share Posted July 14, 2014 No i had issues i couldn't figure out the cause of so i did a leak down test yesterday. The soapy water was bubbling around the base gasket at front of engine. I bought it from a guy who just put a big bore on it and never even rode it because it wouldn't rev past 1/4 throttle. So i got it extremely cheap. He thought it was jets. Which the Jets were 260 which was way to small but i replaced those and it still isn't right. So my question is could that gasket cause the severe bog and could it cause it to be hard as hell to start?? Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 14, 2014 Author Report Share Posted July 14, 2014 Perfect. I bet a new gasket will fix 95% of my problems. Thank you! Quote Link to comment Share on other sites More sharing options...
03DMshee Posted July 14, 2014 Report Share Posted July 14, 2014 Does it rev like its hitting a rev limiter over and over? If so you got 2 problems...but get that base gasket replaced and nake sure you do a leakdown BEFORE you start bike again Quote Link to comment Share on other sites More sharing options...
tfaith08 Posted July 14, 2014 Report Share Posted July 14, 2014 What mods, what jetting, what fuel, what elevation? Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 15, 2014 Author Report Share Posted July 15, 2014 No it don't rev past 1/4 at all. Anything past 1/4 is bog. It's a 392 cc big bore. Fmf gnarlys and power core 2s. Fiber reeds. Boost bottle. Cool head not sure what cc domes. I have 30 pilots and have tried 300 and 320 mains. Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 15, 2014 Author Report Share Posted July 15, 2014 Oh and no air box and dual k&n clamp ons. Elevation is 425ft asl. Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 15, 2014 Author Report Share Posted July 15, 2014 Premium pump gas amsoil 32:1 premix Quote Link to comment Share on other sites More sharing options...
tfaith08 Posted July 15, 2014 Report Share Posted July 15, 2014 I'd be trying 400s and working down. Sounds like you're ultra lean to me. Quote Link to comment Share on other sites More sharing options...
MustangK Posted July 15, 2014 Author Report Share Posted July 15, 2014 Yes but won't the air leak cause a super lean condition? Quote Link to comment Share on other sites More sharing options...
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