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Fed up with Yamaha 4-stroke
This is the second season I have taken my Yamaha T9.9 out of storage and had
problems getting it to run properly. I took extra pains to put it away properly last year. I used Stabil in the last tank of gas. I also ran some Sea Foam through it. The engine was run out until it would not start. I fogged the engine at the end and opened a drain plug on the carb to empty any remaining gas. The engine would barely start this week and would die when put into gear. I cleaned the jets, but missed the jet for mid-range running that was hidden under a plastic cap. My friendly outboard mechanic found it and showed me it was blocked. After cleaning this jet, the engine finally ran. I am using fresh gas, so that was not the problem. I have a filter on the gas tank, and there is another one on the engine. It is possibly a combination of the newer formulas of gas and the design of these later model four strokes (mine is a 2002 with less than 50 hours on it). Some people recommend running the engine at least every 3 weeks, which is not always possible, and what about winter lay-ups? My mechanic recommended using a Mercury product for cleaning carbs that is added to the gas tank. I am skeptical, but am trying it any ways. I never had any of these problems with my old two strokes. That's progress! Sherwin D. |
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