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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Concentric Mk1 Fuel Starvation
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<blockquote data-quote="sidmadrid" data-source="post: 5517" data-attributes="member: 44"><p>Had similar symptoms some time ago after a rebuild.</p><p>My mk1 concentrics were fitted with brass float needles with Viton tips, after much head scratching I concluded that the brass needle valves were too heavy, the fuel was always shut off. Depressing the tickler pushed the float down and allowed fuel into the float chamber, but as soon as you took your finger off the the tickler the fuel was cut off, no matter what the level of fuel in the chamber. {Hope you under stood that.}</p><p>Anyway I fitted nylon float needles and problem solved. sid</p></blockquote><p></p>
[QUOTE="sidmadrid, post: 5517, member: 44"] Had similar symptoms some time ago after a rebuild. My mk1 concentrics were fitted with brass float needles with Viton tips, after much head scratching I concluded that the brass needle valves were too heavy, the fuel was always shut off. Depressing the tickler pushed the float down and allowed fuel into the float chamber, but as soon as you took your finger off the the tickler the fuel was cut off, no matter what the level of fuel in the chamber. {Hope you under stood that.} Anyway I fitted nylon float needles and problem solved. sid [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Concentric Mk1 Fuel Starvation
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