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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starts, runs then slowly "chokes up"
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<blockquote data-quote="Gary Gittleson" data-source="post: 110195" data-attributes="member: 3625"><p>When the engine loses power, I'd suggest applying the choke to see if things change. If there's a brief improvement it would suggest lack of fuel. I can't think of a way this problem would be produced by too much fuel, so it's either a fuel shortage or some sort of ignition problem, since we can assume that Maughn's did an excellent job on the engine itself. </p><p>You say you have a "D" ignition setup. In that case, you have a car-type coil. What's the age of that? Once hot, an old or abused coil can misbehave as you describe. One kind of abuse that can break down the internal insulation of a coil is running the engine or allowing it to spark with the plug(s) disconnected, causing internal sparking in the secondary windings. </p><p></p><p>Gary</p></blockquote><p></p>
[QUOTE="Gary Gittleson, post: 110195, member: 3625"] When the engine loses power, I'd suggest applying the choke to see if things change. If there's a brief improvement it would suggest lack of fuel. I can't think of a way this problem would be produced by too much fuel, so it's either a fuel shortage or some sort of ignition problem, since we can assume that Maughn's did an excellent job on the engine itself. You say you have a "D" ignition setup. In that case, you have a car-type coil. What's the age of that? Once hot, an old or abused coil can misbehave as you describe. One kind of abuse that can break down the internal insulation of a coil is running the engine or allowing it to spark with the plug(s) disconnected, causing internal sparking in the secondary windings. Gary [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starts, runs then slowly "chokes up"
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