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Old 10-06-2013, 04:15 PM   #1
Join Date: Jun 2012
Location: Cypress, TX
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99' CBR600 F4

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Post Bucking Honda F4

Anybody know why my 99 CBR F4, just around 16,000 miles, would be bucking and slight popping. The speedometer is jumping from 10 mph to 60 mph and and tachometer jumping around by the thousands. I just had the oil changed, the valves realigned, the spark plugs, chain adjusted, CCT replaced (although that should apply to this situation), new air filter. I replace the stock exhaust with an aftermarket MP4 Shorty. Motorcycles Unlimited said I would need to get the carbs jetted since I did that. Any thoughts on what would be causing this? Thanks

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Old 10-06-2013, 04:43 PM   #2
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Sounds like a bad connection or ground
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Old 10-06-2013, 04:47 PM   #3
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Sounds like someone pinched a wire somewhere. Trace all wires n check grounds.
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Old 10-07-2013, 11:14 AM   #4
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Yup, What everyone else said, It sounds like a bad wire or ground--Maybe someone forgot to re-connect something.
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