been cleaning up my carbs and have found that on my lefthand carb the flys will not close.

They were very dirty and i thought this was the reason but after cleaning up they still will not close fully. When held upto the light you can see a ring of light.

Dirty!!

dirty fly

gappy. (this is the gap when dirty.. cleaning helped but still will not fully close... and yes the idle control skrew is wound back )


gappy fly

Any ideas what to try next?

Twisted throttle spindle ? butterfly no centralised? wrong throttle screw ? partially siezed spindle?

Are both butterflys open by the same amount? If not throttle spindle is twisted (very common). If they are both open, then try slackening off the butterfly screws to make sure the butterflies are centralised in the spindle.

they both seem to be open the same amount. will try slackening the skrews.

Thanks

Thank you vey much! Fixed!!