TROUBLESHOOTING
SERVICE MANUAL NUMBER 26
Fuel System Lean
Cause
Special Information
Empty fuel tank
Fuel shut-off valve closed (if equipped)
Vapor lock
Engine will not start after warm engine
shut down
Automatic choke
Stuck open, wrong adjustment
Engine will start initially. After a short time
of running, engine will stall and will not
restart for a period of time. Can verify it is
a vent problem by running engine with
filler cap loose. Fill cap will act as a vent.
Fuel tank vent plugged
Sucks air into fuel system reducing fuel
volume
Air leak on suction side of fuel system
Plugged or pinched fuel line
Fuel pump
Low pump pressure
Carburetor Malfunction
Symptoms
Cause
A. Needle and seat
B. Float adjustment
C. Saturated float
Flooding
D. Gaskets leaking
E. Cracked fuel bowl
F. Fuel percolation
G. Automatic choke
A. Idle rpm too low
B. Idle mixture screws
C. Idle passages dirty
D. Throttle valves not closing
E. Engine flooding
Rough idle
F. Vacuum leak
G. Throttle body heat passages plugged
Index
Page 1C-16
90-861329--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 5.0 out of 5.0 based on 6 product reviews. Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good
great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.
Great resource. Excellent information provided.
Need help to install automate choke
Need help to instal automate choke