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<blockquote data-quote="User121314" data-source="post: 1051808" data-attributes="member: 16824"><p>You're running it lean at 40:1.</p><p></p><p>Yamaha 2-smokes are 32:1 on the air cooled motors (most of the liquid cooled as well). Remember, development on these engines stopped decades ago, so this is old tech, not like KTM who've continued development.</p><p></p><p>They are easy to work on to replace piston & rings, so long as the bore is not scored. Parts can be ordered from Rudamans in Nelspruit, they are the agents.</p></blockquote><p></p>
[QUOTE="User121314, post: 1051808, member: 16824"] You're running it lean at 40:1. Yamaha 2-smokes are 32:1 on the air cooled motors (most of the liquid cooled as well). Remember, development on these engines stopped decades ago, so this is old tech, not like KTM who've continued development. They are easy to work on to replace piston & rings, so long as the bore is not scored. Parts can be ordered from Rudamans in Nelspruit, they are the agents. [/QUOTE]
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