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Dyna-S ignition system (now cam end float thread)
mike the bike:
Fitted one on my 400four. I can recommend it as it has improved starting and going up a steep hill by me.
Also,there's no need to fit an extra ignition unit somewhere.
A tip though is to threadlock the pickup coils securely as I had one work loose.
royhall:
Going back to the previous post about the Suzuki cam end float problem, I found this online. Very interesting write up. I may give it a go if the knock proves too much to live with. Hope it's of use to someone else as well.
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K2-K6:
Seems quite a detailed explanation Roy, advanced fettling to get the clearance needed. Interesting the bit about two of the cam lobes being off centre to the cam buckets, guess it's trying to move the cam in an arc as the lobe attempts to rotate the follower bucket resulting in duress on the thrust faces.
You get something similar on V8 Rover engines. The cams are ground with a scew on the lobes to intentionally rotate the follower and distribute wear evenly, this pushes the cam into moving. http://www.v8tuner.co.uk/product.php?id=638 as link they put a ptfe button into front of cam to stop it "walking" back and forth.
kevski:
Another thing that can give the tick is the cam chain guide rollers, these have also been known to go from side to side creating the noise.
royhall:
This sound is a very pronounced knock. As per description it only does it at tickover engine hot, then disappears at 2k revs. Does it every few seconds. Am leaving it for now as it's normal will see how it progresses. The write up was done on a GS850 so the cam offset may be different on the 1000.
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