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Matt, Mechanical Engineer
Category: BMW
Satisfied Customers: 22932
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Hi I have a 1981 R65 fitted with flat top bing carbs have just

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Hi I have a 1981 R65 fitted with flat top bing carbs have just overhauled carbs as bike has been standing some time when engine is started it is very slow to shut down when twistgrip is closed have replaced cables and diaphrams


the carbs on these engines are similar to the old SU type in that they have a variable venturi that lifts up with air flow


it sounds to me that the dashpot / sliding part of the venturi is sticking so I'd suggest stripping the carbs down again and giving the dashpots a good clean with some brake cleaner to remove any deposits

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