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LI s3, revs rising, suspected air leak?

Posted: Wed Apr 13, 2011 10:55 am
by lammysilver
Helping my friend with his S3 LI on the weekend (125, 22mm carb, standard exhaust...), all seems very standard.

It starts after few kicks, doesnt idle at all, after a while the revs rise fast when in neutral at lights etc. making it unridable.

We are just after a few pointers of whats worth checking over before we start and suggestions as to what the cause may be.

cheers

Re: LI s3, revs rising, suspected air leak?

Posted: Wed Apr 13, 2011 7:56 pm
by corrado
Sticking throttle cable maybe. Replacing the cable will be a cheap DIY to rule that out.

Re: LI s3, revs rising, suspected air leak?

Posted: Wed Apr 13, 2011 8:22 pm
by wack 63
Clean carb and fuel tap
Head gasket
exhaust gasket
Inlet gasket
Mag gasket
Oil seals
Base gasket

Just a few to be going on with

Re: LI s3, revs rising, suspected air leak?

Posted: Thu Apr 14, 2011 10:09 am
by paul213
also consider lack of fuel , blocked breather , fuel tap blocked etc