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Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP
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<blockquote data-quote="Pappy" data-source="post: 428916" data-attributes="member: 3278"><p><span style="font-size: 18px">When you say the timing cam is to the left do you mean the pick-up marks on the cam?</span></p><p><span style="font-size: 18px">If so then that needs to be set properly. The carburetor should not be opening before the marks line up with the roller. </span></p><p><span style="font-size: 18px">Now, if the roller is not touching and the marks are to the left then your timing is too low, hence the sneeze. Advance the timing (twist the throttle grip) after making your roller/throttle blade adjustment then re-adjust your mixture. Yes....re-adjust your mixture, to compensate for the advanced timing. If you have already richened it and the idle RPM is good when the timing is where it is supposed to be then you may be good to go. </span></p></blockquote><p></p>
[QUOTE="Pappy, post: 428916, member: 3278"] [size=5]When you say the timing cam is to the left do you mean the pick-up marks on the cam? If so then that needs to be set properly. The carburetor should not be opening before the marks line up with the roller. Now, if the roller is not touching and the marks are to the left then your timing is too low, hence the sneeze. Advance the timing (twist the throttle grip) after making your roller/throttle blade adjustment then re-adjust your mixture. Yes....re-adjust your mixture, to compensate for the advanced timing. If you have already richened it and the idle RPM is good when the timing is where it is supposed to be then you may be good to go. [/size] [/QUOTE]
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Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP
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