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Hi everyone,
I wanted to mention a small mod that seems to have fixed a very stubborn problem with a 2005 25 HP 4 stroke Yamaha. Several people had worked on the carb including the dealer that sold it. It never ran well for more than a few weeks whenever the carb was done. Eventually a new carb was purchased and installed. No better results were had and it was done several more times over the course of 4 years.
In march a man who lives in Sebastian tried boring out the high speed jet by 3.5/1,000. Since that time the engine has been used several times a week and almost daily this summer with no more problems. I wouldn't recommend this to others unless you have had ongoing problems with a carburetored engine.
Best regards,Frank_S
I wanted to mention a small mod that seems to have fixed a very stubborn problem with a 2005 25 HP 4 stroke Yamaha. Several people had worked on the carb including the dealer that sold it. It never ran well for more than a few weeks whenever the carb was done. Eventually a new carb was purchased and installed. No better results were had and it was done several more times over the course of 4 years.
In march a man who lives in Sebastian tried boring out the high speed jet by 3.5/1,000. Since that time the engine has been used several times a week and almost daily this summer with no more problems. I wouldn't recommend this to others unless you have had ongoing problems with a carburetored engine.
Best regards,Frank_S