Motorcycle speeding alone


Information and questions on GL1500 Goldwings (1988-2000)
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Phil76750
Posts: 20
Joined: Tue Apr 22, 2014 1:14 pm
Location: Rouen,Haute Normandie, France
Motorcycle: 1997 GL 1500 SE

Motorcycle speeding alone

Postby Phil76750 » Fri Jan 30, 2015 12:19 pm



Hello
It was by chance that I discovered this problem on my GL 1500
Backwards while turning the handlebars to the right, the bike began to accelerated alone!
After several tests on the center stand, stopped, this phenomenon continues. Only by turning the handlebars to the right!
My checks:
- 2 cables of the right grip are not tight.
- These two cables run on the left side, along the air filter: no twist!
- After removing the front left cover, I see that the throttle valve does not move when I turn the handlebars to the right, but the motor accelerates anyway?

Someone would have an idea ?
thank you

For information, I posted this question on our French forum Goldwing
http://forum.fgwcf.org/

In French
Bonjour à Tous.
C'est par hasard que j'ai découvert ce problème sur ma GL 1500
En reculant tout en tournant le guidon à fond vers la droite, la moto s'est mise à accélérée toute seule !
Après plusieurs essais sur la béquille centrale, à l'arrêt, ce phénomène perdure. Uniquement en tournant le guidon à fond vers la droite !
Mes vérifications:
- les 2 câbles de la poignée droite ne sont pas tendus.
- Ces 2 câbles passent du coté gauche, le long du filtre à air: pas de torsion !
- après avoir démonté le cache avant gauche, je constate que le volet d'accélération ne bouge pas lorsque je tourne le guidon vers la droite, mais le moteur accélère quand-même ?

Quelqu'un aurait il une idée
Merci



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Re: Motorcycle speeding alone

Postby WingAdmin » Fri Jan 30, 2015 12:58 pm

This is almost always caused by throttle cables. And when it is, it usually causes the engine to accelerate when the handlebars are turned to the right (which stretches the throttle cables).

There is supposed to be a specific amount of slack in the throttle cable. Can you confirm that the throttle twist grip has free play, even when the handlebars are turned? If not, then the throttle cables are too tight.

Throttle Free Play
Throttle Free Play


To adjust, loosen the lock nut, turn the adjuster as required, and tighten the lock nut.

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Phil76750
Posts: 20
Joined: Tue Apr 22, 2014 1:14 pm
Location: Rouen,Haute Normandie, France
Motorcycle: 1997 GL 1500 SE

Re: Motorcycle speeding alone

Postby Phil76750 » Fri Jan 30, 2015 1:13 pm

Thank you for the quick answer.
In my tests, I had also loosened up the adjustment screw.
Currently, my throttle twist grip has "big" free play
I also remove blocking two cables at the central portion of handlebar
The two cables are free of all movements!

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ct1500
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Re: Motorcycle speeding alone

Postby ct1500 » Fri Jan 30, 2015 1:50 pm

Then it would be on to the choke cable adjustments of the left bar causing the enrichment rods to be pulled.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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Phil76750
Posts: 20
Joined: Tue Apr 22, 2014 1:14 pm
Location: Rouen,Haute Normandie, France
Motorcycle: 1997 GL 1500 SE

Re: Motorcycle speeding alone

Postby Phil76750 » Fri Jan 30, 2015 2:07 pm

Ok. I had not watched
I test this tomorrow (now, it is 8:OO PM)
thank you

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Phil76750
Posts: 20
Joined: Tue Apr 22, 2014 1:14 pm
Location: Rouen,Haute Normandie, France
Motorcycle: 1997 GL 1500 SE

Re: Motorcycle speeding alone

Postby Phil76750 » Sat Jan 31, 2015 6:32 am

Hello
Very good idea "ct1500"
Indeed, the choke cable was too tense !
After having pushed towards the middle of the handlebars, the phenomenon has disappeared
Many Thanks




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