Poor Fuel Economy
Cause
Fuel leaks
Special Information
Operator habits
Prolonged idling; slow acceleration; failure to cut
back on throttle once boat is on plane; boat
overloaded; uneven weight distribution
Engine laboring
Bent, damaged, or wrong propeller. Water test
boat for proper operating RPM at wide-open-
throttle
Clogged flame arrestor
Engine compartment sealed too tight
Boat bottom
Not enough air for engine to run properly
Dirty (marine growth), hook, rocker
Carburetor
Idle mixture settings, accelerator pump adjust-
ments,linkage binding, choke adjustment, carbu-
retor flooding over, main fuel jets
Improper fuel
Crankcase ventilation system not working
Engine needs tune-up
Engine running too cold or too hot
Plugged or restricted exhaust
Engine
Low compression
Index
90-823224--2 796
TROUBLESHOOTING - 1C-13
| 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