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Bouncing Speedometer

Started by AgPilot, August 08, 2016, 06:54:36 PM

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balky1

Quote from: ribbert on August 09, 2016, 08:36:56 AM
Quote from: balky1 on August 09, 2016, 01:48:41 AM
Interesting. I have similar prob on my '85. It doesn't bounce constantly, but if I ride it continuously for an hour-hour and a half then starts bouncing whenever I get over some bumps. So I figured out it has something to do with forks stretching and compressing as it straightens or bends the cable that way. I lubed the gear and cable with no change and just left it like that.

Balky, I think you'll find it's just the bumps, not the cable bending as the forks compress. If you hold a speedo in your hand and move it down and up quickly the needle will rise and fall. If it's lost some of its damping, it will jump over bumps.

Noel

Thx for input Noel. It doesn't worry me too much, I try not to watch it anyway.  :rofl2:


FJ 1100, 1985

FJools

I found the cable was causing mine - but it only happened around the 110kmh mark and cleared up as you hit 130Kmh (allegedly officer)
New cable cured it but I don't think this sounds like your problem.........
Still thinking of something..................

oldktmdude

   GPS speedo from Speedhut fixed my bouncing needle. Not cheap but better than an expensive speeding fine.
1985 FJ1100 x2 (1 sold)
2009 TDM 900
1980 Kawasaki Z1R Mk11 (sold and still regretting it)
1979 Kawasaki Z650 (sold)
1985 Suzuki GSXR 400 x2 (next project)
2001 KTM 520 exc (sold)
2004 GasGas Ec300
1981 Honda CB 900 F (sold)
1989 Kawasaki GPX 600 Adventure

ribbert

Quote from: oldktmdude on August 10, 2016, 12:50:17 AM
   GPS speedo from Speedhut fixed my bouncing needle. Not cheap but better than an expensive speeding fine.

For $100 I got a GPS/HUD speedo that projects my speed onto the inside of the shield, I love it.

Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

red

Quote from: ribbert on August 10, 2016, 06:55:23 AM
Quote from: oldktmdude on August 10, 2016, 12:50:17 AMGPS speedo from Speedhut fixed my bouncing needle. Not cheap but better than an expensive speeding fine.
For $100 I got a GPS/HUD speedo that projects my speed onto the inside of the shield, I love it.
Noel
Noel,
Hey, links, man, links!  Can't just hit-and-run like that!   :biggrin:   

Okay, now this lil black box runs as HUD or read it straight, as you may wish, and costs a breath-taking US$38.  Rapid updating and Very accurate.  (Free shipping on Amazon orders over US$49.)

https://www.amazon.com/Kingneed-Vehicle-Head-Up-Speedometer-distance/dp/B0148JUT7W/ref=lp_3032928011_1_1?srs=3032928011&ie=UTF8&qid=1470838434&sr=8-1

Cheers,
Red
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

FJmonkey

Quote from: red on August 10, 2016, 09:25:07 AM
Okay, now this lil black box runs as HUD or read it straight, as you may wish, and costs a breath-taking US$38.  Rapid updating and Very accurate.  (Free shipping on Amazon orders over US$49.)

https://www.amazon.com/Kingneed-Vehicle-Head-Up-Speedometer-distance/dp/B0148JUT7W/ref=lp_3032928011_1_1?srs=3032928011&ie=UTF8&qid=1470838434&sr=8-1

Cheers,
Red

I just ordered one, I will post up when I have it installed. Great find, thanks Red.
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

barberman91

I know that this is off topic, but do you guys know of any way to test the tachometer. mine doesn't work at all and all of my other gauges work just fine. I currently have the cluster off of the the bike.

balky1

Quote from: barberman91 on August 27, 2016, 10:39:29 PM
I know that this is off topic, but do you guys know of any way to test the tachometer. mine doesn't work at all and all of my other gauges work just fine. I currently have the cluster off of the the bike.

Just to clarify, tachometer is the RPM part? I know it sounds silly, but in Europe tachograf is a paper that records your speed in larger trucks and, hence, many call the speedometer tachometer.


FJ 1100, 1985

barberman91


red

Quote from: balky1 on August 28, 2016, 02:56:32 AMJust to clarify, tachometer is the RPM part? I know it sounds silly, but in Europe tachograf is a paper that records your speed in larger trucks and, hence, many call the speedometer tachometer.
Balky1,

In the USA, the Speedometer gives the vehicle speed along the road.
The tachometer gives the engine speed, as RPM.

Cheers,
Red
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

ct7088

I can only tell about the 84/85 model, orange wire is connected to the #1 and #4 coil trigger coming from the TCI, light brown is 12 volts and black is ground. All three wires go through the 9 pin connector first. The black wire detours to the headlamp socket then back to the 14 pin connector with the orange and light brown wire. The fuel gauge shares the same 12 volts and ground along with the fuel, oil, neutral and high beam annunciators. Check resistance between the orange wire at the coil connector and the orange wire at the orange tach wire. Resistance should be less than 1 ohm.
Chris
Chris