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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet timing
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<blockquote data-quote="Cyborg" data-source="post: 178405" data-attributes="member: 3426"><p>Thanks Chris. I realize the rolling back is normal,,,, it‘s the fact that this ignition system uses the rotation of an optical encoder disk to tell it where it is in relation to TDC. Unfortunately the system can’t differentiate between forward or reverse motion. When it rolls back it still adds that number of degrees, so next time you kick … it has added that number. Say it rolled back 10 degrees… next time you kick it, instead of 4 degrees before TDC, it fires at 14 before TDC. Now that I figured out that‘s how the thing operates, I just have to pull in the decompressor and roll it past TDC, so it forgets about those extra 10 degrees. Unfortunately that’s a bit of a pain because of the tendency for it to do it again, but at least I know what it’s doing. There was no mention of this “ feature” in the instructions or on the website. It took some searching and head scratching to figure it out. I bought the system because it is programmable, so hopefully I can teach myself the proper starting drill. If I actually like riding this thing, I’ll explore making an electric leg.</p></blockquote><p></p>
[QUOTE="Cyborg, post: 178405, member: 3426"] Thanks Chris. I realize the rolling back is normal,,,, it‘s the fact that this ignition system uses the rotation of an optical encoder disk to tell it where it is in relation to TDC. Unfortunately the system can’t differentiate between forward or reverse motion. When it rolls back it still adds that number of degrees, so next time you kick … it has added that number. Say it rolled back 10 degrees… next time you kick it, instead of 4 degrees before TDC, it fires at 14 before TDC. Now that I figured out that‘s how the thing operates, I just have to pull in the decompressor and roll it past TDC, so it forgets about those extra 10 degrees. Unfortunately that’s a bit of a pain because of the tendency for it to do it again, but at least I know what it’s doing. There was no mention of this “ feature” in the instructions or on the website. It took some searching and head scratching to figure it out. I bought the system because it is programmable, so hopefully I can teach myself the proper starting drill. If I actually like riding this thing, I’ll explore making an electric leg. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet timing
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