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  1. J

    Yamaha F150 rpm problem

    This is a history of the post on another site I have a 2006 F150 with 550 hours on it. I bought it used and found out after I bought it that it will only tach to 5400 rpm's. I have cleened the injectors, changed plugs, changed fuel filters, run yamaha combustion chamber cleaner throug it, run...
  2. J

    Yamaha F150 rpm problem

    I have a 2006 F150 with 550 hours on it. I bought it used and found out after I bought it that it will only tach to 5400 rpm's. I have cleened the injectors, changed plugs, changed fuel filters, run yamaha combustion chamber cleaner throug it, run a leakdown test three time throught the...
  3. J

    Yamaha 4 stroke 150

    I have a 21' Explorer TV with a 150 Yamaha 4 stroke that I have tried 3 props on and can't get 6000 rpm only 5300. I have a 3 blade 14 3/4"x17 that turns 5100rpm wide open a 4 blade 14"x16 that will turn 5300 rpm and a 3 blade 14"x19 that will turn 4600rpm. Top in on all 3 props is 35 to 37 mph...
  4. J

    2002 Mercury 90 HP 4 Stroke

    I was wanting any information on a 2002 4 stroke 90hp mercury. Any good or bad info abouthis motor would be appreciated. Is this a lemon year for the 4 stroke are ther any none problems that I should be aware of as in lower unit running hot shifting problems high fuel consumption ect. I am...
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