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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Ignition timing for twin plug heads
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<blockquote data-quote="Bracker1" data-source="post: 17283" data-attributes="member: 922"><p>The chop tests I've done always result with the plug looking different at every read. I can't get any consistancy. My thought is , you are good for the specific RPM you cut the motor at, but have no idea how it is behaving getting to full throttle. Slides, needle, etc. may be wrong. The new fuels without lead are designed to burn "cleaner" so the deposit shouldn't be there anyhow. The same goes for the colortune plugs, they glow different if you use Av fuel vs. unleaded. So, if you use a plug chop test, use the leaded and beware of getting a ticket running the bike to wide open. I think the dyno will give a pretty accurate assesment of settings. Cheers, Dan</p></blockquote><p></p>
[QUOTE="Bracker1, post: 17283, member: 922"] The chop tests I've done always result with the plug looking different at every read. I can't get any consistancy. My thought is , you are good for the specific RPM you cut the motor at, but have no idea how it is behaving getting to full throttle. Slides, needle, etc. may be wrong. The new fuels without lead are designed to burn "cleaner" so the deposit shouldn't be there anyhow. The same goes for the colortune plugs, they glow different if you use Av fuel vs. unleaded. So, if you use a plug chop test, use the leaded and beware of getting a ticket running the bike to wide open. I think the dyno will give a pretty accurate assesment of settings. Cheers, Dan [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Ignition timing for twin plug heads
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