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Miller bobcat 250 welder with kohler lp gas engine won't idle properly any adjustments for air/fuel mix?

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Make sure that the idle is set at 40Hz. You do this by placing a frequncy meter on one of the 120Vac outlets. If frequency is low, the engine will run rough at idle. There is a 3/8 nut next to carberator that needs to be turned to the right to increase the idle speed.

Posted on May 13, 2009

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Posted on Jan 02, 2017

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#Tags bobcat 250 welder service manual

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Miller bobcat on propane surges when turned to idle


It might be missing a stabilizing spring on the the throttle shaft to eliminate accumulated play in the components.

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If you do smell LP, the regulator likely needs repair or a hose needs replacement..

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