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General Chat (Vincent Related)
A STRANGE THING..
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<blockquote data-quote="greg brillus" data-source="post: 98447" data-attributes="member: 597"><p>This is a pretty common fault.......It is basically a lean condition at low engine speed. If the slide was badly worn you would need to have the mixture screw wound nearly fully in to compensate for the excess air bypassing around the slide. You will need to enrichen the mixture and get the engine to idle quite slowly, so by winding in the mixture screw this in itself will slow the engine. You are best off carrying out this on a warm but not hot engine. Go for a quick run around the block and then adjust.......When you adjust the mixture you need to set it on the rich side rather than where the engine revs at idle are at a higher level, this will make the engine rev like you describe. This can also be caused by weak ATD springs which don't allow the engine to retard at low speed, thus causing the engine to rev more at idle, this often causes quite savage kick backs on the kick start lever as well.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 98447, member: 597"] This is a pretty common fault.......It is basically a lean condition at low engine speed. If the slide was badly worn you would need to have the mixture screw wound nearly fully in to compensate for the excess air bypassing around the slide. You will need to enrichen the mixture and get the engine to idle quite slowly, so by winding in the mixture screw this in itself will slow the engine. You are best off carrying out this on a warm but not hot engine. Go for a quick run around the block and then adjust.......When you adjust the mixture you need to set it on the rich side rather than where the engine revs at idle are at a higher level, this will make the engine rev like you describe. This can also be caused by weak ATD springs which don't allow the engine to retard at low speed, thus causing the engine to rev more at idle, this often causes quite savage kick backs on the kick start lever as well. [/QUOTE]
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A STRANGE THING..
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