Knocking/ rattle

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Pinwood400
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Knocking/ rattle

Post by Pinwood400 » Tue Jul 03, 2018 9:36 pm

Hi. Am I need of help again. I have an 88 nc23 , finally got her through the mot a couple of weeks ago and done around 200 miles since ( no problem. Went to go for a ride on Sunday and within 20 yards I noticed a intermittent knocking noise like something was loose or catching. It sounded like it was coming from below the seat. I’ve lifted the rear wheel and spun by hand, no noise / rattle. When run in gear the rattle/ noise appears. Is this a gearbox issue?

moforockband
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Bike owned: GK73a SP CRM250 mk3
Re: Knocking/ rattle

Post by moforockband » Tue Jul 03, 2018 11:25 pm

probably your chain/sprockets is too loose/or in poor condition.

dunkenb
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Bike owned: Cbr400rr nc29 type8 NSR250
Location: West Midlands
Re: Knocking/ rattle

Post by dunkenb » Wed Jul 04, 2018 10:26 am

Does it go when you pull the clutch lever?
Could be the clutch basket or perhaps a wheel or sprocket carrier bearing?


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