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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Float Level 276's
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<blockquote data-quote="Prosper Keating" data-source="post: 9914" data-attributes="member: 1376"><p>Good question. Offhand, I would imagine that the runoff to which you refer would not come into play when the motor was running and sucking fuel into the works. It would be there in order to reduce any risk of the fuel leaking through the pilot system into the motor, which (a) risks washing oil from the bores on start-up and (b) contaminates the engine oil. Once the motor were turned off, there might be seepage or drops until the fuel level fell below this runoff. This could explain the old-fashioned habit of turning the fuel taps off shortly before arriving at one's destination. I am going into the batcave tomorrow morning and will scrutinise and perhaps even photograph a 289 in pieces so we can see what's what. I will also play about with the 289 on the bike to see how it leaks. </p><p></p><p>PK</p></blockquote><p></p>
[QUOTE="Prosper Keating, post: 9914, member: 1376"] Good question. Offhand, I would imagine that the runoff to which you refer would not come into play when the motor was running and sucking fuel into the works. It would be there in order to reduce any risk of the fuel leaking through the pilot system into the motor, which (a) risks washing oil from the bores on start-up and (b) contaminates the engine oil. Once the motor were turned off, there might be seepage or drops until the fuel level fell below this runoff. This could explain the old-fashioned habit of turning the fuel taps off shortly before arriving at one's destination. I am going into the batcave tomorrow morning and will scrutinise and perhaps even photograph a 289 in pieces so we can see what's what. I will also play about with the 289 on the bike to see how it leaks. PK [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Float Level 276's
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