Recent content by Makky

  1. M

    Starting problem with 2001 50HP Yamaha Tiller

    Hi: After reading these forum reports about Yamaha carbs I have finally learned my lesson about taking care of fuel quality. Last year I took my motor in for carb work. After one year use it works perfect in all speed ranges. But I have a question about starting. Even when new this...
  2. M

    2001 Yamaha 50 H.P. 4-stroke fuel advice

    I just had my four carbs overhauled by a marine mechanic and he gave me the usual advice about E-10 and the importance of chemicals in the gas. He advised using nonoxygenated fuel as well. I am all set to do this when I was told that the Yamaha people do not advise this because of the 92...
  3. M

    Best Fuel for 2001 Yamah 4-stroke

    This motor has four carbs that seem to be easy to plug up. I have been told that the jets on the modern motors are so small that they clog easily with old fuel etc. Our reg fuel has ethanol in it--would it be better to use the high test premium gas? I couldn't run it for six weeks this...
  4. M

    50 H.P Yamaha gas contamination problem

    I have a 2000 50 H.P. engine that recently has been giving me a serious problem. I had put a new gas gauge in my tank that didn't seem to be reading accurately, so I wanted to check it out so I ran to the bottom of the tank. All of a sudden the engine lost power and would hardly run. I would...
  5. M

    Marine Oil Filters

    I have a 50 H.P. Yamaha 4 stroke. It calls for a fx 140 or 5gh 13440-00 oil filter. Does anyone know of a cross reference number for a motorcycle or auto filter?<br />Thanks for any information.<br /><br />Makky
  6. M

    Yamaha 50 H.P. 4 stroke carb draining

    What is the best method of putting a motor in winter storage? I have a 2000 Yamaha 50 H.P. motor. I am getting conflicting advice as to the best mentod to treat the carbs. One approach is to run stabil. Another says Seafoam is a better treatment. Some say to then run the gas out of the line...
  7. M

    Fuel leak 50 H.P. Yamaha 4 stroke

    I have a peculiar fuel leak on my 2000 50 h.p. yamaha. I noticed a serious gas spill on my garage floor. Taking off the cover I could see gas visibly dripping from the bottom of the carb section. I disconnected the gas line and cleaned up the spill. When I tilted the motor about a cup of gas...
  8. M

    fuel gauge problem

    My son accidentally reversed the connections on the battery of his boat. After that the fuel gauge would not register. Does that burn out the sending unit or the gauge itself. What kind of a ohm reading should I try. I see gauges in catalogs priced at about $29. When you buy a new gauge do...
  9. M

    Gas question for 50 H.P. Yamaha

    I have a 50 H.P. Yamaha 4 stroke. Does anyone know what is the best octane for this engine? Premium or Regular. A dealer told me not to use Premium. He suggested a fuel additive from Yamaha. Costs about $10 for a small bottle.<br />Thanks for your help.<br />Makky
  10. M

    Winter storage main Yamaha 4 stroke.

    I have a 2001 50 H.P. Yamaha 4 stroke. I have heard different opinions on the proper way to treat this motor for the 6 month winter storage period. I am quite familiar with the 2 stroke motor maint of fogging etc.<br /> Does the 4 stroke have to be fogged? Should you run the gas...
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