GStwin.com GS500 Message Forum

Main Area => General GS500 Discussion => Topic started by: kdilly on June 09, 2008, 03:00:35 AM

Title: HELP: Tapping noise around gas tank area of my 2008 gs500f
Post by: kdilly on June 09, 2008, 03:00:35 AM
Hello, I'm new to this bike riding thing (only been riding 3 weeks) and I noticed something first with my Ninja 500R and now with my GS500F. When I'm building up speed, seems like i hear a tapping noise from a chain of some sort around the gas tank area. I was wondering if that was normal from 500's. Thanks
Title: Re: HELP: Tapping noise around gas tank area of my 2008 gs500f
Post by: Average_Joe on June 09, 2008, 03:15:04 AM
Valve bouncin???   :dunno_white:Ive got those springs goin one or twice (sounds like chain slap but from the engine!! :icon_mrgreen:)
Title: Re: HELP: Tapping noise around gas tank area of my 2008 gs500f
Post by: ohgood on June 09, 2008, 04:48:18 AM
valves floating is a very bad thing. i'm only assuming that because you said while accelerating. if you are trying to accelerate quickly, shift at 9,500 or so, power drops off quickly any higher, and you risk grenade'ing the engine.

or, your cam chain tensioner is in need of attention.

have you adjusted your valves yet ?
checked your drive chain's tension ?

:)
Title: Re: HELP: Tapping noise around gas tank area of my 2008 gs500f
Post by: ben2go on June 09, 2008, 01:18:06 PM
Could be cam walk.There's nothing holding the cams from moving side to side except the timing chain.It makes a knocking sound.It could be that the valves need to be adjusted.Check the gap around the fuel tank.It could be the tank rubbing the frame.If it's just a single quick clunk.It could be bad steering bearings.Put the bike on the center stand and push and pull the handle bars.If they move the steering stem bearings could be bad.
Title: Re: HELP: Tapping noise around gas tank area of my 2008 gs500f
Post by: gsJack on June 09, 2008, 01:34:29 PM
Sure it's not gas knock if you're getting it only while accelerating, putting engine under load.
Title: Re: HELP: Tapping noise around gas tank area of my 2008 gs500f
Post by: sledge on June 09, 2008, 02:00:12 PM
If you are concerned take it back to the dealer and ask them investigate, if its an 08` it will still be under warranty.