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Main Area => General GS500 Discussion => Topic started by: Twism86 on August 11, 2011, 09:48:31 AM

Title: "Bouncing" Tach
Post by: Twism86 on August 11, 2011, 09:48:31 AM
My bike rides fine and the RPMs stay steady while revving or driving. However while cruising on the highway this morning to work i was at 7k RPM and the idle sounded steady, no bucking. The tach showed the needle bouncing back and forth by a few MMs. Did this at just about every range but idle even tho the bike runs fine. Just very bouncy and not steady.
Title: Re: "Bouncing" Tach
Post by: cbrfxr67 on August 11, 2011, 10:00:18 AM
Oooooooohhhh, sorry.  I just saw 'bouncing' and not even in tard farm.  My bad.
Title: Re: "Bouncing" Tach
Post by: ben2go on August 11, 2011, 11:41:29 AM
Sounds like the tach cable needs to be lubed or maybe the cable has broken inside.Mine did that and it just needed a little love and lube.ROFLMAO
Title: Re: "Bouncing" Tach
Post by: Twism86 on August 11, 2011, 01:13:39 PM
Recommendations for lube?

Keep it clean boys haha
Title: Re: "Bouncing" Tach
Post by: ben2go on August 11, 2011, 01:33:38 PM
I clean with WD 40 and lube with white lithium.Never had a problem but some of the other on here use dry lubes like graphite.Never used it on cables before.
Title: Re: "Bouncing" Tach
Post by: ben2go on August 12, 2011, 07:56:52 PM
Dang it!Ya jinxed me.Now I got tach shake.Gonna have ta clean and lube the cable in the next few days.I did almost 140 miles with it bouncing.If it happens to be broken,I got a few spares.
Title: Re: "Bouncing" Tach
Post by: JAY W on August 13, 2011, 04:48:01 AM
You didn`t say on what year bike,the electronic rev counters do this if there`s a bad earth.
Title: Re: "Bouncing" Tach
Post by: GSnoober on August 13, 2011, 12:29:09 PM
Good point, Jay W; a bad / corroded / loose ground/earth connection will cause this problem.

He didn't mention the model year in the post, but that information is included in his sig:

2002 GS500E aka "Dumbo"

Every GS5 I've ever owned is aalways referred to as "Retardo"... for obvious reasons...
Title: Re: "Bouncing" Tach
Post by: numus on August 13, 2011, 01:45:58 PM
Quote from: GSnoober on August 13, 2011, 12:29:09 PM
Good point, Jay W; a bad / corroded / loose ground/earth connection will cause this problem.

He didn't mention the model year in the post, but that information is included in his sig:

2002 GS500E aka "Dumbo"

Every GS5 I've ever owned is aalways referred to as "Retardo"... for obvious reasons...
Mine is named PITA...
Title: Re: "Bouncing" Tach
Post by: noiseguy on August 13, 2011, 08:02:03 PM
Bouncing tach... don't they all do this to some extent? I know mine bounces a bit... around 100RPM give or take.
Title: Re: "Bouncing" Tach
Post by: slipperymongoose on August 13, 2011, 10:22:56 PM
Quote from: JAY W on August 13, 2011, 04:48:01 AM
You didn`t say on what year bike,the electronic rev counters do this if there`s a bad earth.

Ahhhhh mine bounces round a bit thanks for this I'll give mine the once over.
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