Question about 1978 Moto Guzzi V 50 I

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How do I adjust a Mikuni roundslide carb. Thanks

How do I adjust a Mikuni roundslide carb. The Engine starts but won't stay runding. Plus it bougs when I open the throllel. I screwed in the Idel adjustment screw. Thanks Steve

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Turn the air screw and the throttle screw inward until they LIGHTLY seat. Now turn each of them outward one and one half turns. This is the factory setting. You might want to clean the carbs. After cleaning, before you put the slide back into the carb, move the clip on the jet needle downward one notch. This will richen the fuel mix and help with the bog.

Posted on Dec 11, 2009

Testimonial: "Thanks for your help. Steve"

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Posted on Jan 02, 2017

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Carb adjusting


get the bike started, hold the engine at a high idle. while holding the idle high, adjust the air fuel mixture screw until it sounds smooth. rev it up a few times and see if the engine is "snappier". let it return to an idle, then adjust the idle screw. it may take a few tries to get it right, just listen to the engine.. if this dont work, you may consider re-jetting the carb. hope this helps...

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