XR600 Inlet manifold de-restriction


1 reply to this topic
  • GrForce

Posted November 06, 2005 - 04:55 PM

#1

I have recently had some top end power problems with my 98 XR600. Whilst removing the carburettor to check main/pit/clean etc, I have noticed that the inlet manifold has had the restriction taken out (which is good). On closer inspection I have noticed that the inlet manifold has in fact been filed out internaly... so much so in one spot there is only a wafer thin gap between the sealing o-ring and the plastic/bakerlite inlet manifold.
This filed out manifold means that there is a 3-4mm overlap when the manifold is bolted to the engine. I think that this may create turbulance in the manifold at higher revs, thus creating my top end power problem

What do you think.

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  • roadcam

Posted November 07, 2005 - 06:00 AM

#2

sounds like a potential problem there, should have been mated up, not over-enlarged ... turbulence potential, for sure





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