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Other Honda Mini Trails
CT90, CT110, ST70, ST90 Discussion
Honda ST90 can timing issues
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<blockquote data-quote="b52bombardier1" data-source="post: 179547" data-attributes="member: 5931"><p>Weak springs in the advancer can't pull the arms back in when idling. Makes for some interesting timing measurements.</p><p></p><p>Don't buy anything for a coil just yet. And even then, only buy one from Dr ATV for either an ST90 or a CT90 - same coil. Many coils offered on EBay, etc. are for a CDI ignition and won't work for an ST90 or a CT90. </p><p></p><p>Do you have a copy of the shop manual showing pictures of the various flywheel indicators and marks and what the normal position of the points plate should look like?</p><p></p><p> Have you tried running a 12 volt strobe timing light here? Works the same way . . . just hook it up to a 12 volt car battery.</p><p></p><p>Rick</p></blockquote><p></p>
[QUOTE="b52bombardier1, post: 179547, member: 5931"] Weak springs in the advancer can't pull the arms back in when idling. Makes for some interesting timing measurements. Don't buy anything for a coil just yet. And even then, only buy one from Dr ATV for either an ST90 or a CT90 - same coil. Many coils offered on EBay, etc. are for a CDI ignition and won't work for an ST90 or a CT90. Do you have a copy of the shop manual showing pictures of the various flywheel indicators and marks and what the normal position of the points plate should look like? Have you tried running a 12 volt strobe timing light here? Works the same way . . . just hook it up to a 12 volt car battery. Rick [/QUOTE]
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Other Honda Mini Trails
CT90, CT110, ST70, ST90 Discussion
Honda ST90 can timing issues
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