speedometer


Information and questions on GL1100 Goldwings (1980-1983)
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fynespirits
Posts: 29
Joined: Mon Aug 31, 2015 7:32 pm
Location: merseyside uk
Motorcycle: Gl 1100 a 1982

speedometer

Postby fynespirits » Sun Feb 07, 2016 11:32 am



Hi all ,
I have noticed on my old M.O.T tests , (yearly compulsory safety checks) that my mileage is different to previous years .
also my speedometer reads slower than the speed I am travelling at !
I am just wondering if it is possible that the previous owner swapped the speedometer head for the wrong one ?
30 mph travelling equates to 17 -20 mph indicated speed !!
is it possible the original head would have been the 150 mph clocks ?
or possibly is the drive on the wheel different between the two types of clocks ?
there is none of the noise described in other threads that would indicate a damaged speedo head !
I am thinking the speedometer is wrong type ! Or , the drive is the wrong type .
Are there part numbers I could check and if so where can I find them please ?
cheers , affraid I will get a speeding ticket soon if I don't get to the bottom of this problem !!

the bike is a 1982, 1100 aspencade


The wrong side of 30 yrs old ,
over 600 lbs , and she can still turn heads with her looks !! :lol:

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RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: speedometer

Postby RBGERSON » Sun Feb 07, 2016 2:56 pm

Any thing is possible..first pull the cable and clean it/lube it the tube too. If that doesn't fix it..then I'd start at the wheel hub take the drive off and check the insides for wear.

Post a pic of the speedo..might show if it's the right one..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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fynespirits
Posts: 29
Joined: Mon Aug 31, 2015 7:32 pm
Location: merseyside uk
Motorcycle: Gl 1100 a 1982

Re: speedometer

Postby fynespirits » Mon Feb 08, 2016 8:15 pm

Ok , this is what my speedometer looks like



And this is what I think I should have



I say this because the needle would be in the right position for my speed if the face on the second clocks
was on my bike , if that makes sence ?

this is why I think the clocks are wrong or the drive at the wheel is wrong !!
The wrong side of 30 yrs old ,
over 600 lbs , and she can still turn heads with her looks !! :lol:

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stephenricci
Posts: 25
Joined: Thu Oct 23, 2014 9:07 pm
Location: Green Valley, Arizona
Motorcycle: 1982 GL1100 Interstate
1980 GL1100 Interstate (New Project)
1983 GL1100 Naked
1985 Honda Sabre 700
1966 Honda CB77 Super Hawk (Another Project)
1988 Yamaha Virago 1100 Gold Edition
2014 Kawi KLR650 New Edition
1986 Yamaha YZ490
2007 Artic Cat 500 ATV
2014 Yamaha Grizzly 350 ATV

Re: speedometer

Postby stephenricci » Mon Feb 08, 2016 8:49 pm

The pic of the one you have is the same as the one I have on my 82 Interstate. The pic of the one that you think should have is the same as the one on my 83 Naked. Maybe someone swapped out the drive at the wheel. Hope you solve the issue before you get stopped!
IYAAYAS
We Live So Others May Die!

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Maz
Posts: 237
Joined: Tue May 19, 2015 4:43 am
Location: Kent, UK
Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200

Re: speedometer

Postby Maz » Tue Feb 09, 2016 4:21 am

Slightly off topic and I apologise if I am seen to be 'hijacking' this thread, but could one of our American brothers tell me what is the true reason behind the 80mph speedo's on US vehicles? When was it introduced? Was it all states? etc etc.

I always wanted to know, when I was younger, but no one in the UK seemed to know for sure.

Maz
Nostalgia is not what it used to be!

4wred
Posts: 151
Joined: Sat May 17, 2014 8:42 pm
Location: lancaster pa
Motorcycle: 82 goldwing aspencade
82 aspy turned naked (sold)
89 suzuki gsx 1100F

Re: speedometer

Postby 4wred » Tue Feb 09, 2016 8:39 am

stephenricci wrote:The pic of the one you have is the same as the one I have on my 82 Interstate. The pic of the one that you think should have is the same as the one on my 83 Naked. Maybe someone swapped out the drive at the wheel. Hope you solve the issue before you get stopped!


The first one is the one on my bike 82 aspy also,I believe that is the stock one.
Ditto on swapped out the drive!!

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WingAdmin
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Motorcycle: 2000 GL1500 SE
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Re: speedometer

Postby WingAdmin » Tue Feb 09, 2016 9:35 am

Maz wrote:Slightly off topic and I apologise if I am seen to be 'hijacking' this thread, but could one of our American brothers tell me what is the true reason behind the 80mph speedo's on US vehicles? When was it introduced? Was it all states? etc etc.

I always wanted to know, when I was younger, but no one in the UK seemed to know for sure.

Maz


It was 85 mph, actually. It was a federal regulation that came into effect on September 1, 1979, that all vehicles manufactured had a maximum of 85 mph displayed on the speedometer, with emphasis on 55 mph.



The idea was to try to slow drivers down, making 55 mph look "fast" on the speedometer, and was an unsuccessful attempt at dealing with the energy crisis.

The regulation was eliminated in October of 1981, after it was discovered to have no meaningful effect.

My favorite implementation of this law was the one undertaken by Ferrari:



Ford did something similar with its SVO Mustang:


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fynespirits
Posts: 29
Joined: Mon Aug 31, 2015 7:32 pm
Location: merseyside uk
Motorcycle: Gl 1100 a 1982

Re: speedometer

Postby fynespirits » Tue Feb 09, 2016 10:37 am

A few saying speedo drive !
I know my clocks have been changed for sure .
How can you tell which drive is which ?
Is there a part number that relates to the 85 mph speedometer drive please ?
Can't seem to find any info !!
The wrong side of 30 yrs old ,
over 600 lbs , and she can still turn heads with her looks !! :lol:

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roadwanderer2
Posts: 4113
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
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Re: speedometer

Postby roadwanderer2 » Tue Feb 09, 2016 11:26 am

well, here's a suggestion you can try. i changed out the speedo gear inside the hub and i did to figure out exactly how "off" my speedometer was. if you can find a police vehicle with radar set up, ask them if they can clock your speed at what the speed limit is against what your bike's speedometer reads at what the speed limit is supposed to be. i did this in a 35 mph speed limit, while my bike showed 35 mph, i was actually going 3 miles an hours slower than my bikes speedometer showed. in other words, i was going 32 mph while my speedometer showed 35 mph.

im ok with this because knowing my actual speed, i'll never get a speeding ticket 8-).

stuart.

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Maz
Posts: 237
Joined: Tue May 19, 2015 4:43 am
Location: Kent, UK
Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200

Re: speedometer

Postby Maz » Tue Feb 09, 2016 12:12 pm

Many thanks, WingAdmin, for the detailed explanation and apologies again to fynespirits for side-tracking his thread, without even giving any useful input! :oops:
Maz


Nostalgia is not what it used to be!


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