Phut phut noise when stepping down and slowing towards lights or a junction. - Honda Motorcycles - FireBlades.org
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post #1 of 3 Old 03-01-2017, 2:15 AM Thread Starter
 
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Phut phut noise when stepping down and slowing towards lights or a junction.

Sign that the shims needs doing or just a characteristic of a carbed lump?
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post #2 of 3 Old 03-01-2017, 2:26 AM
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Re: Phut phut noise when stepping down and slowing towards lights or a junction.

Not likely to be shims. could be a rich mixture, or more likely an air leak in the exhaust system, maybe even right at the junction with the cylinder head. On overrun you can get negative pressure there which will pull in air and can ignite unburnt fuel in the exhaust.
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post #3 of 3 Old 03-01-2017, 2:33 AM Thread Starter
 
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Re: Phut phut noise when stepping down and slowing towards lights or a junction.

Damn! Just had it serviced too. Is it a serious problem or can I just carry on as per and ignore it?
No loss of power. But does guzzle hehe
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