Important Service
Information
Hard Starting
If a hard starting condition exists, after engine has not
been operated for a period of time, proceed with the
following:
Weber Carburetor Adjustable
Accelerator Pump
1.
Before starting engine, remove flame arrestor
then operate throttle to see if choke closes.
2.
If choke is stuck open, check choke stove link rod
and choke linkage on both sides of carburetor for
cause of sticking. Possible paint or interference
to rod or linkage.
The accelerator pump lever on Weber Carburetors
has three holes in it. The closest hole to the lever’s
pivot point is the richest, the second hole is leaner
and the hole furthest away is the leanest. All produc-
tion carbs have the pump rod installed in the closest
(richest) hole. If you are having a “rich” bog on accel-
eration, move the rod to the second or third hole.
Weber put the three holes in the lever so the amount
of fuel delivered by the accelerator pump could be
changed.
3. Ifchokeplatedoesnotclosetightstep2or3,then
choke link rod will have to be bent to make it
shorter so it will close choke plate completely.
a
73716
a - Bend Here To Shorten
a
b
4. After installing, ensure that the rod does not rub
against stove cover or carburetor throughout its
travel.
c
70472
a - Rich
b - Lean
c - Leaner
Index
90-823224--2
796
WEBER 4 BARREL CARBURETOR - 5B-7
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you