z750L: Repair starter clutch
- gordone
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Re: z750L: Repair starter clutch
27 Jun 2025 10:13
Yes was them I was thinking about, did feel/hear any difference after replacing them?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- gordone
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Re: z750L: Repair starter clutch
02 Jul 2025 06:57
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
The following user(s) said Thank You: Nessism
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- gordone
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Re: z750L: Repair starter clutch
Yesterday 04:11
Secondary shaft nut - 60 Nm (44 ft.lbs)
Clutch hub nut - 108-160 Nm (80-118 ft.lbs)
Clutch Spring Bolt`s - ???
Oil Pan screws - 6-9 Nm (5-7 ft.lbs)
Somebody know how many Nm I should apply on the Clutch Spring Bolt`s ?
Is their some bolts/nuts I have forgotten?
I can apply the same Nm on nut for secondary shaft on both side of the motor?
Hope I can the last package during tody so I can complete these during the weekend...
Clutch hub nut - 108-160 Nm (80-118 ft.lbs)
Clutch Spring Bolt`s - ???
Oil Pan screws - 6-9 Nm (5-7 ft.lbs)
Somebody know how many Nm I should apply on the Clutch Spring Bolt`s ?
Is their some bolts/nuts I have forgotten?
I can apply the same Nm on nut for secondary shaft on both side of the motor?
Hope I can the last package during tody so I can complete these during the weekend...
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- gordone
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Re: z750L: Repair starter clutch
Yesterday 10:25
Driller off the head on the nails today, should I just keep the rest of the nail and then weld between the rest and the plate?
Use something to push the plate completly down before welding, their are 3 springs pushing against?
the red frition plate is broken, I don’t need a new one?
Use something to push the plate completly down before welding, their are 3 springs pushing against?
the red frition plate is broken, I don’t need a new one?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Nessism
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Re: z750L: Repair starter clutch
Yesterday 10:50
You drilled off more of the rivet than might be ideal. The rivets on my hub were flush after clamping everything down for the welder.
The red gasket thing isn't needed, from what I've read from others doing this repair.
P1020572
by
nessism
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The red gasket thing isn't needed, from what I've read from others doing this repair.

Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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- gordone
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Re: z750L: Repair starter clutch
Yesterday 11:07 - Yesterday 11:21
Ah, okay. Did you grind the surface of the plate where you’re going to weld? Is it to ensure a better weld?
The welder ask if it’s normal black steel?
The welder ask if it’s normal black steel?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: Yesterday 11:21 by gordone.
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- Wookie58
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Re: z750L: Repair starter clutch
Yesterday 11:25This is why I suggested "grind" not "drill" but if your welder is on his "A" game you should be OK
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
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Re: z750L: Repair starter clutch
Yesterday 11:35 - Yesterday 11:41
Did not read good enougf 
I talked with welder and see he has alot to weld on, he is pro so hope he is correct

I talked with welder and see he has alot to weld on, he is pro so hope he is correct

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: Yesterday 11:41 by gordone.
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