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yamaha 15hp 2 stroke 100:1 or different
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<blockquote data-quote="hwew" data-source="post: 157855" data-attributes="member: 1820"><p>My 1995 Yamaha 6hp manual said 100to1 pleasure use. And 50to1 Commercial use. Yamaha stopped printing 50to1 commercial use a few years after I purchased my engine.</p><p></p><p>Here is the way I look at it. When Yamaha made that change in the manual a few years later the 6 hp outboard parts has not changed at all. This tells me Yamaha probably was forced to change the oil ratio to pass new emissons standards. Will I ever run 100 to 1 in my outboard? NO. Why? Because I never had one engne problem with all the outboards I owned. And I put more hours on in a week than most put on in a year. I never had carbon problems at all. Of course I run a ring free additive. I only put one new set of plugs in my outboard every year.</p><p></p><p>People that run 100 to 1 and don't have problems, Hats off to you. But I will just keep wth 50to1.</p><p></p><p>50to1 will not cause problems if you maintain your engine.</p><p></p><p>Henry</p></blockquote><p></p>
[QUOTE="hwew, post: 157855, member: 1820"] My 1995 Yamaha 6hp manual said 100to1 pleasure use. And 50to1 Commercial use. Yamaha stopped printing 50to1 commercial use a few years after I purchased my engine. Here is the way I look at it. When Yamaha made that change in the manual a few years later the 6 hp outboard parts has not changed at all. This tells me Yamaha probably was forced to change the oil ratio to pass new emissons standards. Will I ever run 100 to 1 in my outboard? NO. Why? Because I never had one engne problem with all the outboards I owned. And I put more hours on in a week than most put on in a year. I never had carbon problems at all. Of course I run a ring free additive. I only put one new set of plugs in my outboard every year. People that run 100 to 1 and don't have problems, Hats off to you. But I will just keep wth 50to1. 50to1 will not cause problems if you maintain your engine. Henry [/QUOTE]
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yamaha 15hp 2 stroke 100:1 or different
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