Carbs just rebuilt
Running on two cylinders at medium or high speed
Bogs on low speed
Will not idle without a little throttle applied
Mag side carb spitting fuel out of the overflow tubes.
How many turn should the idle and the low speed screws be set at initially?
Tuning a Mikuni (Help!)75 340 Sno Twister
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Tuning a Mikuni (Help!)75 340 Sno Twister
Last edited by Mike Horrigan on Sun Mar 08, 2009 10:43 am, edited 1 time in total.
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- Location: Alberta, Canada
Did you make sure to clean the pilot jets? Sometimes they get missed, and if plugged, will cause the idling problems. Initial setting for the air screws is 1 1/2 turns out. Make sure carb slides are moving in sync, turn idle screws in until they just touch the slides then turn 3 turns. Jet needle clip should be in the fourth slot from the top. Once the engine warms up you can adjust the air screws in or out to get the best idle.
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