Weber Marine 4 Barrel Accelerator Pump

Accelerator Pump Adjustment
Accelerator Pump Lever AdjustmentA – Rich
B – Lean
C – Leaner

The Weber marine carburetor accelerator pump lever has 3 holes. The standard position is to have the rod in the 1st (A) hole. If you are experiencing a bogging down on acceleration try placing the rod in hole B, then hole C.

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