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throttle problem

[FONT=Verdana,Arial][FONT=Verdana,Arial]courtesy Don S. at Iboats: Engine Won't Reach Operating RPM. Check

1. Fuel condition. Type and Octane possibly old fuel 2. Propeller pitch or diameter, damaged blades 3. Restricted fuel pickup tube or anti siphon valve 4. Crankcase oil volume, high oil level can cause aerated oil and lifter collapse 5. Marine growth on hull and outdrive 6. Wrong gear ratio in outdrive 7. Restricted carburetor air intake (clogged flame arrestor) 8. Restricted exhaust system (broken exhaust shutters/flappers) in engine transom shield or drive 9. Poor cylinder compression Compression Test 10. Carburetor defective, or wrong type. 11. Fuel pump pressure and vacuum 12. Boat overloaded, improperly loaded, or improperly trimmed. 13. Engine Overheating 14. Engine timing and ignition system operation 15. Remote control cables and linkage for proper travel to open throttle plates fully.
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