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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
TT carb
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<blockquote data-quote="greg brillus" data-source="post: 142668" data-attributes="member: 597"><p>Flooding is or can be an issue with the larger 302 type bowls, not sure if the smaller bowls have the same needles in them, but the clearance between the needle and the housing is very close........I've found they flood easily due to tiny particles of crud in the fuel.........smaller than grains of sand, this will cause the needle to stick in its bore and fuel runs out of the bowls quite badly. The cure at that time was to install some in line filters to catch any contaminants in the fuel.........I think it may have been some left over sand blasting medium that was inside the tank that went unnoticed.........There were no filters on the fuel taps as we used large bore hydraulic taps to flow enough fuel which was methanol. I think from memory the racing type carb's........The cut away number on the slides is in 32 th's of an inch not the usual 1/16" so the cut away number might not be as large as you might think.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 142668, member: 597"] Flooding is or can be an issue with the larger 302 type bowls, not sure if the smaller bowls have the same needles in them, but the clearance between the needle and the housing is very close........I've found they flood easily due to tiny particles of crud in the fuel.........smaller than grains of sand, this will cause the needle to stick in its bore and fuel runs out of the bowls quite badly. The cure at that time was to install some in line filters to catch any contaminants in the fuel.........I think it may have been some left over sand blasting medium that was inside the tank that went unnoticed.........There were no filters on the fuel taps as we used large bore hydraulic taps to flow enough fuel which was methanol. I think from memory the racing type carb's........The cut away number on the slides is in 32 th's of an inch not the usual 1/16" so the cut away number might not be as large as you might think. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
TT carb
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