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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
TT carb
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<blockquote data-quote="oexing" data-source="post: 173697" data-attributes="member: 1493"><p>You are quite right, the Ali viton needles are not suitable for bottom feed - as I mentioned above somewhere. Yes, I am not familiar with TT carbs and all but when you look at my photo below, an Amal I put on the Horex 600 , from the bits I got with the HRDs long time ago : The float looks quite wrong at this angle, did not care about this as I had no angled float chamber then. But even so, NO problems with dripping ! Remember, the float - ahmm - floats in there , so no weight per se on the needle from side loads. So then for saving hassles in your place I´d get some abrasive and the lathe or drill and polish the used needle for a nice cone as it got some ridges from wear. After that just lap it in the chamber jet with very fine diamond paste like 5 micron or any suitable paste. I cannot see why this would not work on your bike. So no real need for complicated mods involving viton bits. In other forums I came across reports about viton needles and dripping carbs, so even with them there can be troubles, just we would not expect them to behave like that old stuff. </p><p></p><p> Vic</p><p>[ATTACH=full]59853[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 173697, member: 1493"] You are quite right, the Ali viton needles are not suitable for bottom feed - as I mentioned above somewhere. Yes, I am not familiar with TT carbs and all but when you look at my photo below, an Amal I put on the Horex 600 , from the bits I got with the HRDs long time ago : The float looks quite wrong at this angle, did not care about this as I had no angled float chamber then. But even so, NO problems with dripping ! Remember, the float - ahmm - floats in there , so no weight per se on the needle from side loads. So then for saving hassles in your place I´d get some abrasive and the lathe or drill and polish the used needle for a nice cone as it got some ridges from wear. After that just lap it in the chamber jet with very fine diamond paste like 5 micron or any suitable paste. I cannot see why this would not work on your bike. So no real need for complicated mods involving viton bits. In other forums I came across reports about viton needles and dripping carbs, so even with them there can be troubles, just we would not expect them to behave like that old stuff. Vic [ATTACH type="full"]59853[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
TT carb
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