Yamaha Boating - Page 8 - Recent Questions, Troubleshooting & Support
How do I check the oil pump on a 96 wave runner 760 twin carb
First, empty your fuel tank and pour a 2% fuel mix in it.
Remove the oil hoses coming to the carbs. Put the ends in 2 recipients.
Run the engine for a few minutes. Oil must come in the recipients. I couldn't find an exact quantity in the Service manuals.
The theoretical mix is 50:1 ( 50 liters fuel with 1 liter oil)
So, the best way is to have a full tank 50/1 fuel/oil mixture AND a full oil tank.
Sail a few hours, refuel ( count how many liter you've burned. Refill the oil tank to level.
Check that the fuel/oil ratio is about 50:1.
You can adjust the mixture with the cable on the oil pump.
on Oct 02, 2017
I have a problem with my 2003 yamaha waverunner
It's not possible to be 100% certain with your information but I will follow the following sequence; first take out all the spark plugs and inspect if they are too dry or with metallic residues (this could tell you about a big failure in the cooling system or lubrication and a possible mayor engine failure) , second try to run the engine with the starter, it has to run very easy without any strange metallic noise. apparently you run your waverunner without correct lubrication or water cooling circulation and the engine was over heated.
on Sep 22, 2017
How to test powerpack Yamaha 150 trx carbed outboard
You can not test any power pack. You have to test all other ignition components first. If all components test good it could be a bad powepack. First thing first, check ground wire, check all grounds. Make sure no carosen, or loose bolts. Your also want to ensure wire to terminal has a good connection.
on Sep 21, 2017
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