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Title: kfx 400 knocking Post by: 04KFX400rider on July 23, 2005, 12:55:08 AM I know some one already posted about this but my kfx is makeing a knocking or pinging noise and i took it to the dealer and it stoped for about three days. But it still runs fine. I was wondering is this a big problem or is it ok to run like this.
??? Title: Re: kfx 400 knocking Post by: TRX450R_Racer on July 23, 2005, 08:04:00 AM It sounds like the valves need to be adjusted.
Title: Re: kfx 400 knocking Post by: Da_Mtg_Man on July 23, 2005, 08:09:20 AM yep, valves.
Title: Re: kfx 400 knocking Post by: LakeMaryKid on July 23, 2005, 03:46:26 PM adjust the valves
Title: Re: kfx 400 knocking Post by: TOY_DOCTOR on July 26, 2005, 09:51:27 AM could also be the timing chain if its a rattling noise, hard to tell you wants wrong with out hearing it...
Title: Re: kfx 400 knocking Post by: Terry Arick on July 27, 2005, 12:55:24 PM There is an old but sure way to determine where and what the sound is. Take a long screwdriver, and with the engine running, put the butt end of the screwdriver up to your ear. Put the metal end of the screwdriver against the head and listen for the tick. Then put it on the crankcase and listen. If it is a ticking noise in the head, it is most likely the valve adjustment. If it is a knocking sound from the crankcase area, then it is your crank bearings.
Hope this helps. Terry Title: Re: kfx 400 knocking Post by: 04KFX400rider on July 27, 2005, 10:15:11 PM I tried to adjust the valves but they were fine so i took it to the shop and they charged me 134.99 to tell me that it was the timeing chain tentioner and the quad was fine!
So i basicly paid 134.99 for an oil change :-\ Oh whell its only money. Right? Title: Re: kfx 400 knocking Post by: TOY_DOCTOR on July 28, 2005, 05:43:48 PM You can modify the stock chain tensioner to give it more travel and stop the noise...
Title: Re: kfx 400 knocking Post by: 04KFX400rider on July 28, 2005, 10:45:31 PM do you have any info on how to do this?
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