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Author Topic: cmb carb settings 91 rs  (Read 2137 times)


  • Guest
cmb carb settings 91 rs
« on: July 23, 2009, 05:41:00 am »

hi guys just fitted a new cmb 91rs carb to my ops 90 , could any one tell me the base line carb settings
i have got the L at 3 turns and the H at 3 turns . When i try and start it ,   it will try and fire but then floods and there is a lot of fuel in the exhaust.
Any HELP would be greatly appreciated.
Kind Regards


  • Guest
Re: cmb carb settings 91 rs
« Reply #1 on: July 23, 2009, 03:21:35 pm »


I put some stuff in the post on the OMRA forum - with regards to needle settings etc.
One other thought. Just wondering what sort of tank you're running - and where it is in relation to the engine. Could the fuel be syphoning into the engine ?

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