MERCARB 2 BARREL CARBURETOR
SERVICE MANUAL NUMBER 24
Adjustable Accelerator Pump Lever
This new 3 hole lever allows you to change the amount of fuel delivered to the engine by
the accelerator pump. The hole closest to the lever’s shaft will give the same amount of fuel
as the single hole lever did. The center hole gives approximately 0.5 cc less fuel and the
hole furthest away will give about 1.0 cc less fuel.
a
b
c
73131
a - Full Accelerator Pump Stroke
b - 0.5 cc Less Fuel per Stroke
c - 1.0 cc Less Fuel per Stroke
When installing the 3-hole lever, remove any metal ball that may have been placed in the
accelerator pump well to limit pump travel. Also, ensure that the duration spring on the accel-
erator pump is stock and hasn’t had coils removed. Ensure that the correct venturi cluster
is being used.
Description
This MerCarb carburetor is a two bore carburetor that has a separate fuel feed for each
venturi. This model is equipped with an electric choke. A removable venturi cluster (secured
to float bowl assembly) has the calibrated main well tubes and pump jets built into it. The
venturi cluster is serviced as a unit. The serviceable main metering jets are bleeds to
properly meter the correct fuel / air mixture to the engine.
Page 5B-8
90-861327--1 OCTOBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 4 out of 4)
Marine readers have rated Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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