Throttle acceleration sensitive


Information and questions on GL1100 Goldwings (1980-1983)
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diggidan
Posts: 2
Joined: Thu Feb 03, 2022 1:27 am
Location: Sverige
Motorcycle: 1982 GL1100DW

Throttle acceleration sensitive

Post by diggidan »



Disclaimer: English is not my first language so bare with me when explaining, hehe.

So, I just got my bike finally running on all 4 cyls. I have had the carbs in and out of the bike about 5 times due to a faulty carb no.3.
All is running superduper now BUT the "kick-down" function (when you yank the throttle and the bike revs up extra to give extra power in acceleration) is activated prematurely.

When I bought the bike this function kicked in when i went to like 70% throttle maybe. And then it gave the bike a real kick.
Now it comes when i hit about 30% throttle. And because of this I dont get any more power, the engine just revs up a bit and maybe even gets less power at that moment.
So when riding the bike it sounds like Im even more unexperienced than I am, revvin upp like crazy just to get goin.

I have changed all the membranes in all of the carbs and the accelerator pump. I feel like it did this even before changing the acc-pump.
I tried to sync the bike once and MAYBE it came after that, I dont know.

Or is the rod with the spring on it in the picture attached?

And how do I adjust this?

Thanks everyone!
Attachments

accelerator-rod???
accelerator-rod???



joecoolsuncle
Posts: 562
Joined: Sun Sep 26, 2021 6:10 am
Location: oxford, ar
Motorcycle: 1984 gl1200a

Re: Throttle acceleration sensitive

Post by joecoolsuncle »

there is no "kickdown function". but it sounds as if you may be lean, or timing may be not advanced, or plug gap too wide, or all the above. maybe as you post more symptoms, and post exactly what you are working on, even with pictures, the problem will be narrowed down until diagnosed.
good luck!
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DenverWinger
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Re: Throttle acceleration sensitive

Post by DenverWinger »

Hello and welcome to the forum!

It might be the language in your description of the problem but what I read in the description is that on hard acceleration the RPMs increase without a a corresponding increase in actual speed KPH.

There is no "Kick-down" function on a Goldwing- this sounds like you are thinking it downshifts the transmission to a lower gear on hard acceleration like an automatic transmission in a car.

I suspect this may be your clutch slipping. You should adjust the clutch cable so that the friction point begins at about half-way on the clutch lever release, there should be a small amount of free play in the clutch handle when fully released.
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diggidan
Posts: 2
Joined: Thu Feb 03, 2022 1:27 am
Location: Sverige
Motorcycle: 1982 GL1100DW

Re: Throttle acceleration sensitive

Post by diggidan »

Thanks for the answers!

By "kick down" I was referring to the rod in the picture which, when throttling up, seams to have some impact on the carb. But never mind, probably I'm just thinking that, hehe.

But you are maybe on to something about the clutch!
Because it seams to engage and disengage very far out from the handle.
It's like when I pull the lever it just has impact on the first 20-30% of the pull but when pulling the lever the rest of the way in, it's already "in neutral".
Holy crap, I'm struggling to explain xD

But could it be that? That i have to adjust the clutch to "take" on a broader spectrum of the lever action?

Because yes, now when you mention it, it is like i just pulled in the clutch a bit when I put load on the bike.
Gosh, now I sure hope it's something as simple as that :p

I'm at work right now so I can't test it but I will as soon as I can!
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winguyjo
Posts: 627
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing 8 : 1982 gl1100 standard.

Re: Throttle acceleration sensitive

Post by winguyjo »

what you are referring to as the "kick-down" is actually an accelerator pump, and yes, the spring-loaded lever in your pic is what actuates the accelerator pump. to me it also sounds like you have a slipping clutch ... however ... there should be, if i remember correctly, a 10mm gap between that arm and the stop that it is resting against. someone will correct me if i am wrong on that spec.
joecoolsuncle
Posts: 562
Joined: Sun Sep 26, 2021 6:10 am
Location: oxford, ar
Motorcycle: 1984 gl1200a

Re: Throttle acceleration sensitive

Post by joecoolsuncle »

winguyjo wrote: Thu Feb 03, 2022 5:12 pm what you are referring to as the "kick-down" is actually an accelerator pump, and yes, the spring-loaded lever in your pic is what actuates the accelerator pump. to me it also sounds like you have a slipping clutch ... however ... there should be, if i remember correctly, a 10mm gap between that arm and the stop that it is resting against. someone will correct me if i am wrong on that spec.
10 sounds pretty big, but wont hurt if the clutch fully disengages. as clutch plates expand, you may need 10?


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