TROUBLESHOOTING SERVICE MANUAL NUMBER 22
Page 1C-14 90-860074--1 FEBRUARY 2002
Poor Fuel Economy
Cause Special Information
1. Fuel leaks
2. Operator habits 2. Prolonged idling; slow acceleration;
failure to cut back on throttle once boat
is on plane; boat over loaded; uneven
weight distribution
3. Engine laboring 3. Bent, damaged, or wrong propeller.
Water test boat for proper operating
rpm at wide open throttle
4. Clogged air cleaner
5. Engine compartment sealed too tight 5. Not enough air for engine to operate
properly
6. Boat bottom 6. Dirty (marine growth), hook, rocker
7. Turbocharger malfunction
8. Improper fuel
9. Crankcase ventilation system not
working
10. Engine operating too hot or too cold
11. Plugged or restricted exhaust
12. Engine 12. Low compression
13. Injectors not functioning properly 13. Refer to SECTION 5E for EDI
diagnosis
14. Injection pump timing incorrect 14. Refer to SECTION 5E for EDI
diagnosis
To Next Page
Loading...
Need help?
General