float needle

michael booker /
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hi guys and girls hope your allll good, im working on an Sparta happy moped for an old friend its a Sachs with a square bing carb 85/10/101. ive cleaned the carb but it still won't start.good spark and compression.when I stripped the carb I noticed the float needle didn't have a rubber tip.it was still pointed but just metal.i did the under water test(blowing through while holding the needle shut) no bubbles, and polished the seat(the bit the needle gos into) my question is did all bing carb needles have a rubber tip.many thanks in advance mick from Ireland

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