Fuel System Rich
Cause
Special Information
Warm engine carburetor percolation
Fuel boils out of float bowl when shut off and
warm. Floods intake manifold.
Clogged flame arrestor
Automatic choke not opening
Float adjustment
Float leaks or is saturated with fuel
Needle and seat leaking
Carburetor gaskets leaking
Excessive fuel pump pressure
Cracked or porous carburetor body
Unseats needle and seat
Fuel System Lean
Cause
Empty fuel tank
Special Information
Fuel shut-off valve closed (if equipped)
Engine will not start after warm engine shut
down
Vapor lock
Automatic choke
Stuck open, wrong adjustment
Miscellaneous
Cause
Special Information
1.
2.
Low grade or stale fuel
Water in fuel
Index
1C-10 - 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