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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Valve Timing
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<blockquote data-quote="Nigel Spaxman" data-source="post: 127168" data-attributes="member: 2907"><p>That is all interesting information. I have the Robinson 105s in my bike right now. I was lucky he made me a set since he had said he would stop. I have never had the bike on a dyno to measure it's power. The seat of the pants impression is pretty good. The bike will hit the rev limiter at 6500 RPM in first and second gear. (I try not to do that) I set the cam timing a little bit retarded because I wanted the bike to rev more. I think it ended up with the equal lift 2 degrees after TDC. I decided to try it. It was an experiment that I think worked, so I left it that way. I don't think the bike was quite as eager to hit the rev limiter with the TP cams, but I had them timed at the 4 degrees before TDC as many people advised. The sheet that came with the cam advised equal lift at TDC. I had the TP cams in my bike but I had some wear problems. The problem was probably caused by to much pressure from the TP valve spring kit. I have reduced that pressure now, and with the stelite Garry Robinson cams I have not seen any wear yet. What is the actual LSA angle on the MKII cams? I have heard it is 97? Is that what you have in your Comet now? I think most people around here (British Columbia) prefer the MKII cams from Garry Robinson.</p></blockquote><p></p>
[QUOTE="Nigel Spaxman, post: 127168, member: 2907"] That is all interesting information. I have the Robinson 105s in my bike right now. I was lucky he made me a set since he had said he would stop. I have never had the bike on a dyno to measure it's power. The seat of the pants impression is pretty good. The bike will hit the rev limiter at 6500 RPM in first and second gear. (I try not to do that) I set the cam timing a little bit retarded because I wanted the bike to rev more. I think it ended up with the equal lift 2 degrees after TDC. I decided to try it. It was an experiment that I think worked, so I left it that way. I don't think the bike was quite as eager to hit the rev limiter with the TP cams, but I had them timed at the 4 degrees before TDC as many people advised. The sheet that came with the cam advised equal lift at TDC. I had the TP cams in my bike but I had some wear problems. The problem was probably caused by to much pressure from the TP valve spring kit. I have reduced that pressure now, and with the stelite Garry Robinson cams I have not seen any wear yet. What is the actual LSA angle on the MKII cams? I have heard it is 97? Is that what you have in your Comet now? I think most people around here (British Columbia) prefer the MKII cams from Garry Robinson. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Valve Timing
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