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Author Topic: MS290 MM  (Read 628 times)

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Offline 660magnum

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Re: MS290 MM
« on: December 21, 2011, 08:23:25 am »
The snorkel device between the carb and the air filter is a compensator that automatically adjusts the fuel mixture for a dirty air filter.

It works by biasing the fuel regulator diaphragm in the carb for any changes in carb inlet air pressure.

It will not compensate for a MM.

You will have to richen the mixture yourself for the MM.
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