Troubleshooting Engine Dies Out Loss Of Or Out Of Fuel - Check: ‰ Fuel gauge operation and wiring. ‰ Fuel level in tank. ‰ Water or debris in fuel. ‰ Fuel pickup tube and screen blockage. ‰ Fuel tank vent blockage. ‰ Plugged external canister or carburetor fuel filters. ‰ Air leak on suction side of fuel system. ‰ Fuel leak on pressure side of fuel system. ‰ Inoperative, restricted, or incorrectly sized anti-siphon valve. ‰ Boat fuel lines too small in diameter. ‰ Fuel pump pressure and suction. ‰ Carburetor cleanliness and operation. 7743722 - Downloaded from www.volvopenta.com 13/05/2008 20:17:06 ‰ See Electrical/Ignition/Fuel Service Manual . Loss Of Ignition - Check:
‰ Primary and secondary ignition circuits. ‰ Ignition switch. ‰ Circuit breakers. ‰ Wiring between engine and dash. ‰ Main engine harness wiring. ‰ See Electrical/Ignition/Fuel Service Manual . Engine Stops Or Dies Out Due To Seizure - Check: ‰ Vertical drive for internal damage. ‰ Oil pressure gauge and crankcase oil level. ‰ Temperature gauge and cooling system operation. ‰ Internal engine components as required. Engine Won’t Reach Operating RPM Check: ‰ Fuel type or octane. ‰ Propeller pitch or diameter, damaged blades, or slipping hub. ‰ Crankcase oil volume. ‰ Marine growth on hull and drive. ‰ Wrong Sterndrive gear ratio. ‰ Operating at high altitude.
‰ Restricted carburetor air intake. ‰ Restricted exhaust outlets in engine, transom bracket, or drive. ‰ Poor cylinder compression. VPA 7743722 English 10-2004 109