Omc 5l Wot

[j_pete003]

I have a 89 four winns 180 horizon bowrider. I had a little problem with the boat last weekend with a blown water hose. I replaced it, clearly time to change it. Then back out to the lake this weekend. The boat ran fine but lacked the rpms at WOT. About 1000 less than should be. It normally runs at 4200 but this weekend only about 3200 rpm. I ran it on the ears and it got up to 4200 easily. Could it be the prop with a little damage or fuel filter need replaced? Someone help please.

 

[lucky7's]

Re: Omc 5l Wot

Did you overheat it?

 

[lucky7's]

Re: Omc 5l Wot

Originally posted by Don S. in the adults only section.



List of possible causes of low WOT (Wide Open Throttle) rpm.

In no particular order

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 Fuel System Test
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.
__________________
Don S.


Why is there never enough time to do it right the first time,
But always enough time to do it again?


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