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Tech. Advice: Series 'A' 500cc/1000cc Bikes
Series "A" Twin front carb float level
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<blockquote data-quote="greg brillus" data-source="post: 87869" data-attributes="member: 597"><p>Thanks for your response Marcus, I was wondering when you'd chime in. Ok my thoughts are that if the float level is correct, the fuel level is actually bellow the center of the main jet and after discussions with Neal, we both conclude that the fuel is actually sucked into the mainjet from the engine. If you tickle the carb's fuel bowl it will easily start to flow additional fuel which will poor down the intake and flood the front cylinder. I feel that it is probably best to have the float level per standard, assuming the groove in the needle is right, and have the body of the carb tilted so the bowl end is down slightly. Because the slot in the carb body that locates the jet block is on the top side, then fuel should not run out of there, provided the lower cap gasket is in good condition and seals correctly. I have had Rodney's bike running several times and ridden around the block, but it has a low speed hunting of the engine and vibrates quite badly running more like a 500 single. I feel it is ignition related, still looking into it at this stage remember that they are running the Powerdynamo units on these bikes.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 87869, member: 597"] Thanks for your response Marcus, I was wondering when you'd chime in. Ok my thoughts are that if the float level is correct, the fuel level is actually bellow the center of the main jet and after discussions with Neal, we both conclude that the fuel is actually sucked into the mainjet from the engine. If you tickle the carb's fuel bowl it will easily start to flow additional fuel which will poor down the intake and flood the front cylinder. I feel that it is probably best to have the float level per standard, assuming the groove in the needle is right, and have the body of the carb tilted so the bowl end is down slightly. Because the slot in the carb body that locates the jet block is on the top side, then fuel should not run out of there, provided the lower cap gasket is in good condition and seals correctly. I have had Rodney's bike running several times and ridden around the block, but it has a low speed hunting of the engine and vibrates quite badly running more like a 500 single. I feel it is ignition related, still looking into it at this stage remember that they are running the Powerdynamo units on these bikes. [/QUOTE]
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Tech. Advice: Series 'A' 500cc/1000cc Bikes
Series "A" Twin front carb float level
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