Carb Rubber Top

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Hustrler T250 72-73
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Suzuki 2-Strokes: T250

Carb Rubber Top

Post by Hustrler T250 72-73 »

If the top rubber piece that the sits on top of the carb is cracked at the top will it affect the operation of the carb?

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mike1161
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Suzuki 2-Strokes: 1970 T350, 2012 Triumph Thruxton
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Re: Carb Rubber Top

Post by mike1161 »

I could be wrong, but I don't think this would really affect the operation of the carb in any way. That piece is actually just a dust boot, and if you look at the carb, the screw-on top cap has a rubber gasket that provides a good seal for the throttle slide at the top of the mixing chamber. The fit of the slide in the mixing chamber is pretty tight anyway, so there shouldn't be much, if any, air leaking through the top cap anyway.
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Current bikes: 1970 Suzuki T350, 2012 Thruxton
Previous bikes: '71 Honda CL350, '82 Yamaha 550 Seca, '86 Yamaha RD350, '88 Suzuki RG500 Gamma, '86 Suzuki VS700, '75 Kawasaki Mach II (S3), '12 Triumph Bonneville T100, '08 Triumph Daytona 675 SE
tricky1962
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Re: Carb Rubber Top

Post by tricky1962 »

I think I'm in agreement with you

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But am happy to be corrected by others
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desmocat
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Re: Carb Rubber Top

Post by desmocat »

Trust me it makes a big difference. Having a leaking carb top boot will cause a lean condition, even to the point of a run away idle if the leak is gross enough. I had problems with idling with my '71 T500, replacing the carb top boots remedied the run away idling problem.
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tricky1962
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Re: Carb Rubber Top

Post by tricky1962 »

desmocat wrote:Trust me it makes a big difference. Having a leaking carb top boot will cause a lean condition, even to the point of a run away idle if the leak is gross enough. I had problems with idling with my '71 T500, replacing the carb top boots remedied the run away idling problem.

Good enough for me (reaches for wallet!)
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