Quote:
Check the vacuum caps on the carbs, sounds like an air leak.
They dry out and crack over time. Also, check the torque on
the header bolts.
+1 and while you're at it, check the rest of the exhaust for leaks especially at the crossover connection. Seal the slip on mufflers and crossover with high temp silicon seal.
12 Rocket Roadster
03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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