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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Crankcase Breather
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<blockquote data-quote="nkt267" data-source="post: 34382" data-attributes="member: 245"><p>What sort of hill are you looking at..A Suffolk hill that rises 2ft in every mile,very flat round here.</p><p>What sort of performance are you expecting? When I went to the national in 2007 on the Island I could only just make 60ish on the climb out of Waterworks Corner,3rd gear or 4th made no difference, till I got to the relatively 'flat' top of the Island.With the 17 tooth sprocket I had on the gearbox at the time, top speed on the flat 1 or 2 up showed 80-85mph on the speedo and over 90 on good downhill roads.BUT the engine was trying to climb out of the frame.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /></p><p>I now have an 18 tooth sprocket and the engine is still not quite run in and the bike goes pretty well, with very short burts up to 80 mph. Cruising at 65-70 is comfortable. I have Mk2 cams and 8:1 pistons as that was all that was available, previously I had a standard piston in..John</p></blockquote><p></p>
[QUOTE="nkt267, post: 34382, member: 245"] What sort of hill are you looking at..A Suffolk hill that rises 2ft in every mile,very flat round here. What sort of performance are you expecting? When I went to the national in 2007 on the Island I could only just make 60ish on the climb out of Waterworks Corner,3rd gear or 4th made no difference, till I got to the relatively 'flat' top of the Island.With the 17 tooth sprocket I had on the gearbox at the time, top speed on the flat 1 or 2 up showed 80-85mph on the speedo and over 90 on good downhill roads.BUT the engine was trying to climb out of the frame.:eek::eek: I now have an 18 tooth sprocket and the engine is still not quite run in and the bike goes pretty well, with very short burts up to 80 mph. Cruising at 65-70 is comfortable. I have Mk2 cams and 8:1 pistons as that was all that was available, previously I had a standard piston in..John [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Crankcase Breather
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