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Engine runs normal until taken off choke then runs very fast
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<blockquote data-quote="turbotodd" data-source="post: 277888" data-attributes="member: 7376"><p>2 cylinder 2 stroke twin carb 25 I assume. If that's the case...more than likely someone let the fuel get old in the carbs at one point and the pilot jets became restricted. Then they tried to use it and realized that it won't idle....and promptly turned the idle up so it would idle. Not uncommon.</p><p></p><p>Look for air leaks at the joint between the intake & carb. also if it's oil injected, look at the oil lines & make sure they're attatched to their nipples on the intake manifold/reed block. Could be other air leaks too but those are the most common.</p><p></p><p>If those are good...pull the carbs, clean 'em, reinstall. I'm somewhat familiar with that motor and I can walk you through synchronizing them and checking the timing once the carbs are clean.</p><p></p><p>If it's a single carb C25...I am not that familiar with them other than they run rough, they're loud, harder to work on than the twin carb 25's.</p></blockquote><p></p>
[QUOTE="turbotodd, post: 277888, member: 7376"] 2 cylinder 2 stroke twin carb 25 I assume. If that's the case...more than likely someone let the fuel get old in the carbs at one point and the pilot jets became restricted. Then they tried to use it and realized that it won't idle....and promptly turned the idle up so it would idle. Not uncommon. Look for air leaks at the joint between the intake & carb. also if it's oil injected, look at the oil lines & make sure they're attatched to their nipples on the intake manifold/reed block. Could be other air leaks too but those are the most common. If those are good...pull the carbs, clean 'em, reinstall. I'm somewhat familiar with that motor and I can walk you through synchronizing them and checking the timing once the carbs are clean. If it's a single carb C25...I am not that familiar with them other than they run rough, they're loud, harder to work on than the twin carb 25's. [/QUOTE]
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Engine runs normal until taken off choke then runs very fast
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