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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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<blockquote data-quote="b'knighted" data-source="post: 100211" data-attributes="member: 59"><p>I had a similar problem with the Knight. Always started well but would fade away. If I stopped and swapped front and rear plugs it would fire up and go again. When it nearly killed me by fading away while I was overtaking on an A road, I decided to strip it all out to get to the root of the problem. In the course of stripping it I started to remove the tank but it was full so I decided to drain it first. With the pipe in a funnel I turned the tap on and got the merest dribble of fuel so I turned on the other tap as well and got no appreciable improvement. </p><p>With the taps removed I could thread a throttle cable through them but could not see light through them. They were Triumph style lever taps, probably new at the beginning of this century and I assume that they had rubber seals which were damaged by ethanol. Fitting non-motorcycle taps with stainless balls in nylon seals cured the problem.</p></blockquote><p></p>
[QUOTE="b'knighted, post: 100211, member: 59"] I had a similar problem with the Knight. Always started well but would fade away. If I stopped and swapped front and rear plugs it would fire up and go again. When it nearly killed me by fading away while I was overtaking on an A road, I decided to strip it all out to get to the root of the problem. In the course of stripping it I started to remove the tank but it was full so I decided to drain it first. With the pipe in a funnel I turned the tap on and got the merest dribble of fuel so I turned on the other tap as well and got no appreciable improvement. With the taps removed I could thread a throttle cable through them but could not see light through them. They were Triumph style lever taps, probably new at the beginning of this century and I assume that they had rubber seals which were damaged by ethanol. Fitting non-motorcycle taps with stainless balls in nylon seals cured the problem. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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