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Ducati Monster Forum
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Speeddog
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Throttle Thump
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Topic: Throttle Thump (Read 747 times)
theoneillusion
Jr. Member
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Posts: 68
Throttle Thump
«
on:
October 02, 2013, 01:42:00 PM »
2008 S4RS. A few days back I blipped the throttle and was suprised to hear a thump sound, similar to launching a bottlerocket out of a tube. I thought it was odd but carried out. Today the same thing happened. Stopped and blipped the throttle with the first resulting sound being the thump sound. Any ideas?
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stopintime
Hero Member
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Posts: 9033
S2R 800 '07
Re: Throttle Thump
«
Reply #1 on:
October 02, 2013, 03:17:17 PM »
Vacum somewhere? Airbox, filter, throttle bodies, intake manifolds, tank ...
Obstruction? Crank case breather, shooting rats out of the exhaust ...
No experience, just trying to think here
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237,000 km/sixteen years - loving it
Speeddog
West Valley Flatlander
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Posts: 14813
RIP Nicky
Re: Throttle Thump
«
Reply #2 on:
October 02, 2013, 04:25:08 PM »
Makes a "Kuunk" sound from the airbox?
Generally indicative of lean fueling or due for valve clearance adjust.
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theoneillusion
Jr. Member
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Posts: 68
Re: Throttle Thump
«
Reply #3 on:
October 03, 2013, 06:44:26 PM »
Ruh roh, you may just be right about the valve clearance. I know I'm due for it, just was waiting for winter to roll around.
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