newbie issues

[MustangK]

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?

[Bennett131]

A blown up engine.

[MustangK]

Lol well its not blown up so what else?

[MustangK]

It was running bad and wouldn't rev past 1/4 throttle

[Bennett131]

if you have an air leak and you know where its leaking I suggest fixing it? Not real sure what else your asking.

[Bennett131]

Do you think you have an air leak or do you know you do?

[MustangK]

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??

[MustangK]

Perfect. I bet a new gasket will fix 95% of my problems. Thank you!

[03DMshee]

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

[tfaith08]

What mods, what jetting, what fuel, what elevation? 

[MustangK]

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.

[MustangK]

Oh and no air box and dual k&n clamp ons. Elevation is 425ft asl.

[MustangK]

Premium pump gas amsoil 32:1 premix

[tfaith08]

I'd be trying 400s and working down.  Sounds like you're ultra lean to me. 

[MustangK]

Yes but won't the air leak cause a super lean condition?