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Author Topic: MS290 won't run slow  (Read 1199 times)

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Offline jmester

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Re: MS290 won't run slow
« on: March 04, 2014, 09:07:00 pm »
The only other thing I could think is the primary or secondary idle jet is clogged in the carb. But don't think that as he said he cleaned it and the saw will start with the choke on. And if they where it would be real lean on the high side. If it is a faulty vent I don't think he would be able to get it started as the vent releases the pressure in the tank as to not vapor lock. Once they build pressure in the tank it is hard for the pump to get any fuel up the line to the carb.
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