'83 Aspencade Tach reads zero


Information and questions on GL1100 Goldwings (1980-1983)
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dakotanator
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1983 GL1100A Aspencade

'83 Aspencade Tach reads zero

Post by dakotanator » Mon Jul 16, 2018 5:05 pm



1983 Aspencade. Bought it 4 yrs ago. Collected necessary parts. Started fixing it up 1st of June/18. Did just about everything to this thing maintenance-wise. Fired it up. Tach reads zero. I tried to find this subject in the forums, no luck. All "tach problems" are cable/analog. Manual is useless in this case. Not covered in manual.

Anyone ever have an electronic tach read zero........then find a fix..?

Could use info. By the way.....THANK YOU to everyone on these forums. Everything I did to this bike to restore it, I got the info from THIS SITE. Everyone's experiences and information proved to be PRICELESS. I am NOT a mechanic, but was able to do everything myself (mostly because of budget). Tires, brakes, calipers, wheel bearings, timing belts, lights, LED's, front/rear master cyl. rebuilds, patching ABS on bags.

Just NEED HELP WITH THE TACH..!!!! hahahaha


It's not WHAT you ride......it's THAT you ride.

DaveO430
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Re: '83 Aspencade Tach reads zero

Post by DaveO430 » Mon Jul 16, 2018 7:05 pm

It appears there are signals from both coils going to the instrument panel, a yellow/blue & a yellow/green wire.(I have such a hard time following those lines on those spaghetti wiring diagrams I could be wrong) You might check those for continuity to the yellow and blue wires at the coils. Other than that it's probably something inside the instrument panel.

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dakotanator
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Motorcycle: 1973 Suzuki TS185 (sold)
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1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: '83 Aspencade Tach reads zero

Post by dakotanator » Mon Jul 16, 2018 8:54 pm

Thanks DaveO430.......I'll check them.

But HEY.......I got the BRAKE LIGHTS WORKING..!! haha
It's not WHAT you ride......it's THAT you ride.

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WingAdmin
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Re: '83 Aspencade Tach reads zero

Post by WingAdmin » Wed Jul 18, 2018 9:07 am

DaveO has it right. There are two wires, Yellow/Blue and Yellow/Green going into the meter that are connected to the coil primaries. They supply pulses to the meter, which are counted/timed by the meter to generate the RPM. Check that you are seeing pulses there, and have connectivity from each wire to one of the coil primaries. If you have pulses there when the engine is running, the problem is likely going to be in the tach meter itself.

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dakotanator
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1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: '83 Aspencade Tach reads zero

Post by dakotanator » Wed Jul 18, 2018 9:47 am

Thank you very much for the info. I will check it. I am SOOO hoping it's a bad connection and not the meter itself.

The LCD bars on the screen don't come on, but when I push the "Digital" button, the LCD at the bottom (numbers) reads zero.

I will definitely "dig into it".
It's not WHAT you ride......it's THAT you ride.

robert78.5
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Re: '83 Aspencade Tach reads zero

Post by robert78.5 » Wed Jul 25, 2018 12:44 pm

I had the same thing happen, turns out the green ground wire on front coil mount bolt was loose. I cleaned surface and retightened bolt and tach worked again.

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dakotanator
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1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: '83 Aspencade Tach reads zero

Post by dakotanator » Wed Jul 25, 2018 3:30 pm

AWESOME..!! I will definitely do that and hope for the best..! Thank you very much for the info.
It's not WHAT you ride......it's THAT you ride.

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dakotanator
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Joined: Sun Jul 20, 2014 10:07 am
Location: Columbia Falls, Montana
Motorcycle: 1973 Suzuki TS185 (sold)
1981 Suzuki GS750L (sold)
1992 Suzuki 1100 Katana (sold)
1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: '83 Aspencade Tach reads zero

Post by dakotanator » Mon Sep 10, 2018 2:49 pm

Thank you Robert78.5. It was EXACTLY that. The wire connection was old and crusted. It was literally disconnected inside the insulator, which is why I couldn't spot it.
Cleaned up contacts, put on new connector. I'm sure it will work. THANK YOU for your response and your knowledge. You too WingAdmin..!!

I don't have 100% confirmation yet. Waiting for my fuel pump to arrive today via USPS (not holding my breath, though).
Then I'll fire it up.

This thing has been almost 90% resto..!! Just got my carbs back from Pistol Pete's, and found fuel pump was toast.

Hey.......stuff happens right..? Once the pump actually GETS HERE, should be about 15 min. to GO TIME. hahaha
It's been a long 3 months piecing this thing back together.
It's not WHAT you ride......it's THAT you ride.

User avatar
dakotanator
Posts: 116
Joined: Sun Jul 20, 2014 10:07 am
Location: Columbia Falls, Montana
Motorcycle: 1973 Suzuki TS185 (sold)
1981 Suzuki GS750L (sold)
1992 Suzuki 1100 Katana (sold)
1981 Honda CB900 Custom (sold)
1983 GL1100A Aspencade

Re: '83 Aspencade Tach reads zero

Post by dakotanator » Mon Sep 10, 2018 5:47 pm

She's on the road again..!! My 1983 Aspy. (Photos soon)

She's got new tires, brakes, LED lights all around (except headlight), rebuilt calipers, rebuilt master cylinders, rebuilt carbs (by Pistol Pete)
new fuel pump, cleaned fuel tank, front/rear progressive suspension.........miss anything..?

Said it before, but it's worth saying again........THANK YOU to all on these forums. Except for the carbs, I was able to do the whole restoration with just using the information and articles on this website. All of your knowledge, experience, and ups-n-downs made it possible to realize my goal......GIT-R-DONE..!!!

Just took the bike out for a quick shakedown. She runs PERFECTLY. I put a digital LED volt meter on, just to see if the OEM was reading correctly. YEP.....she was.
I think the reason it is charging so well.......currently at 14.7 v, is partially due to the fact I took off 19 LIGHTS, and replaced them with LED's.

I'll be taking her for about a 200 mi. trip this week to make sure "all the bugs" have been worked out.
It's not WHAT you ride......it's THAT you ride.

winguyjo
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Re: '83 Aspencade Tach reads zero

Post by winguyjo » Tue Sep 11, 2018 11:19 am

very cool !
if the weather ever dries out again i should have my very first goldwing ready for a test drive with just a couple of days work. can't wait !
love this website, too. so much info readily available that one rarely needs to actually ask a question, and when you do, the answer usually comes quick and clear.



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