1998 SPEEDO AND TACH


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RBGERSON
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1998 SPEEDO AND TACH

Post by RBGERSON »



Over the last few weeks my tach didn't register anything until I blimped the throttle on morning start ups. I ignored it..Anyway yesterday it did it again but didn't register even after the blimp..I took off away noticed the speedo wasn't registering either..but after 30 second both started working and kept working for the ride with several stops and restarts.

So ideas on what to look at first..gear at the wheel?? for speedo; tach ????


HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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GlimWas
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Re: 1998 SPEEDO AND TACH

Post by GlimWas »

Speedo is probably the cable that's worn or something like that, the tach might be a connector behind the dash, or more probable the sensor on the motor. Mine will often after a warm start not give a sign of life until revved a bit
Most motorcycle problems are caused by the nut that connects the handlebars to the saddle

GL1100 '80
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RBGERSON
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Re: 1998 SPEEDO AND TACH

Post by RBGERSON »

Anyone have a diagram of the tach wiring/sensor??
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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MikeB
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Re: 1998 SPEEDO AND TACH

Post by MikeB »

From what I have seen while working on the bike, the speedometer is strictly mechanical as to needle movement. The Tach is electrical from the crank speed sensor through the ECM.
Is this what you are looking for?


MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
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RBGERSON
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Re: 1998 SPEEDO AND TACH

Post by RBGERSON »

Yep, doesn't look like fun tracking this down...if the tach is all electrical why would it be slow to activate most electrical stuff is good or bad..except loose wiring...
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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MikeB
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Re: 1998 SPEEDO AND TACH

Post by MikeB »

RBGERSON wrote:
Thu Oct 04, 2018 5:34 pm
...except loose wiring...
Sounds like you may have hit it on the head.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 18 Years / Flight Engineer C-130E - C-141B - 6 Years. Retired.
Industrial Maintenance Tech - 22 years.
Retired in Tacoma, WA

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RBGERSON
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Re: 1998 SPEEDO AND TACH

Post by RBGERSON »

Last two days it's working perfectly!! Going to be hard to track this down until it totally stops working.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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Re: 1998 SPEEDO AND TACH

Post by WingAdmin »

My money is on a physically sticky tach needle. The higher the engine RPM, the more voltage being applied to the windings that actuate the needle, the more magnetism generated, and the farther the needle moves.

Starting the engine doesn't provide enough force to unstick the needle, but give it a blip gives the needle a harder physical push, breaking it free.



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