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Bing 84 carbs only. Main jet size your running and rpm

Lee Ken Sachs

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  • 2 weeks later...


I have had problems with my bing84 carb running rich for some time. 

The fault was narrowed down to the choke which was leaking fuel and making the motor run rich.  I have solved the problem by fitting a stronger spring onto the choke plunger . This forces the plunger down harder preventing it leaking. 

Finally got a brown spark plug.

Engine is a simonini G24.

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