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Old 06-17-2009, 11:55 PM   #1
geggle
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Default G1 Jumpy

My 84 G1 seems to be kinda jumpy on take-off. What I mean is that the clutch system seems to want to engage rather abruptly. Is there any way to disassemble the clutch to check this out or lube it up? Or does anyone have another idea? Or are g1's just like that? It does get a bit better after it has been run some, but it still does not engage as smooth as it could by any means
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Old 06-18-2009, 02:37 AM   #2
trevor6409
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Default Re: G1 Jumpy

not that this helps you at all but I am having the same issue with my G1, I do alot of low speed running in a campground so this is kind of a problem.
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Old 06-18-2009, 09:42 AM   #3
TheNewGuy
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Default Re: G1 Jumpy

Pull the cover off of the drive clutch and clean / inspect everything. Lube and reinstall the cover, this should help.

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Old 06-18-2009, 09:45 AM   #4
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Default Re: G1 Jumpy

Check the shocks. JK! Do like Ron suggested with the clutch.

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Old 06-18-2009, 11:41 AM   #5
geggle
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Default Re: G1 Jumpy

Okay........... I was checking out the drive clutch. I see a big bolt in the middle with a keeper/type key behind it. I suppose I could bend the keeper thing back to where I could get on to the bolt head. BUT.....how do I keep the clutch from turning with the wrench??? And are any springs gonna be flying out at me?? I assume the bolt is right/standard hand threads?
Anyone have a PDF on this procedure? Or know where I can get a service manual?
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Old 06-18-2009, 11:59 AM   #6
DOOmsman
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Default Re: G1 Jumpy

Also check the length of the belt if worn or stretched it will engage at a higher rpm and (gear ratio) this picture shows testing belt deflection with a tool, you can teach you thumb to push 10 lbs with a few pushes on a scale and get close. Also note that the belt is riding right at the top of the driven pulley.

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Old 06-18-2009, 07:10 PM   #7
geggle
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Default Re: G1 Jumpy

Belt seems to have right tension. But it does sit down below rim of driven clutch about 1/4" or so. You think a new belt might help?
Also still need to know if a service manual is available for this G1 1984
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Old 06-18-2009, 10:07 PM   #8
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Default Re: G1 Jumpy

Quote:
Originally Posted by DOOmsman View Post
Also check the length of the belt if worn or stretched it will engage at a higher rpm and (gear ratio) this picture shows testing belt deflection with a tool, you can teach you thumb to push 10 lbs with a few pushes on a scale and get close. Also note that the belt is riding right at the top of the driven pulley.

Nice post and pic Dooms!!

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Old 06-19-2009, 08:40 AM   #9
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Default Re: G1 Jumpy

Quote:
Originally Posted by geggle View Post
Belt seems to have right tension. But it does sit down below rim of driven clutch about 1/4" or so. You think a new belt might help?
Also still need to know if a service manual is available for this G1 1984
The belt may be worn narrow or the clutch may need cleaning or a new set of sliders at the helix(ramps), or the spring could be tired.
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Old 06-22-2009, 11:01 AM   #10
trevor6409
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Default Re: G1 Jumpy

So which spring is most likely to cause this the primary or secondary? I am gonna tackle this this week and I just wonder which parts I should order up just in case. I am going to have to pull my motor on my G1 because with the lift I can't get to the primary clutch.
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