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"Bouncing" Tach

Started by Twism86, August 11, 2011, 09:48:31 AM

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Twism86

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.
First bike - 2002 GS500E - Sold
Current - 2012 Triumph Street Triple R
"Its more fun to ride a slow bike fast than a fast bike slow"

Tom

cbrfxr67

#1
August 11, 2011, 10:00:18 AM Last Edit: August 11, 2011, 10:25:52 AM by cbrfxr67
Oooooooohhhh, sorry.  I just saw 'bouncing' and not even in tard farm.  My bad.
"Its something you take apart in 2-3 days and takes 10 years to go back together."
-buddha

ben2go

#2
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
PICS are GONE never TO return.

Twism86

#3
August 11, 2011, 01:13:39 PM
Recommendations for lube?

Keep it clean boys haha
First bike - 2002 GS500E - Sold
Current - 2012 Triumph Street Triple R
"Its more fun to ride a slow bike fast than a fast bike slow"

Tom

ben2go

#4
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.
PICS are GONE never TO return.

ben2go

#5
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.
PICS are GONE never TO return.

JAY W

#6
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.
89 GS5,Squire sidecar,risers,Skidmarx bellypan,R1 oval can race can baffled,96 forks,beefy kwak shock,heated grips,scotoiler.LED Clocks.

GSnoober

#7
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...

numus

#8
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...
2006 GSX600F (Katana) - Ananke

noiseguy

#9
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.
1990 GS500E: .80 kg/mm springs, '02 Katana 600 rear shock, HEL front line, '02 CBR1000R rectifier, Buddha re-jet, ignition cover, fork brace: SOLD

slipperymongoose

#10
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.
Some say that he submitted a $20000 expense claim for some gravel

And that if he'd write a letter of condolance he would at least spell your name right.
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