Carburetor Malfunctions
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
2.
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
A. Accelerator pump
B. Leaking gaskets
C. Automatic choke
D. Power piston or power valve
E. Throttle valves
Hesitation or acceleration flatness
F. Throttle body heat passages plugged
G. Main metering jets
H. Float adjustment
I.
Secondary air valve wind-up
Index
1C-14 - TROUBLESHOOTING
90-823224--2 796
| 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