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Old 10-01-2018, 05:36 PM   #12
Bobbed72
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Join Date: Apr 2017
Location: Hillsboro, OR
Posts: 75
Re: Motor goes from lean to rich at idle.

Before I put on the AFR gauge I pulled the carb and checked the slot. There was too much on primary so I squared it up. Turned all 4 corners to 3/4 out. Idle jumped to 1100 so trimmed down with the secondary adjustment. Checked the mix with the vac gauge and ended up leaving them at just less than 3/4 to get the AFR to 13. Going all the way in will kill the motor.
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