GPZ 750 Starter Motors

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damotm
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GPZ 750 Starter Motors

Post by damotm »

Hi All, anyone had problems with a starter motor slipping? on a gpz 750 air cooled '85. Any thoughts, its done 50,000kms on the original. Can they be rebuilt? Cheers

I will let you all know how I go, currently have the starter motor itself being rebuilt at local auto elec. I also realise that there is the starter button, the soleniod / switch, the relay all in the circuit also, but they seem to be fine.
Last edited by damotm on Wed May 27, 2009 8:42 pm, edited 2 times in total.
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bonester
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Re: GPZ 750 Starter Motors

Post by bonester »

Should be OK at that mileage. More likely starter clutch which is a pain in the arse to fix! Starter can be rebuilt easily too. :)
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Re: GPZ 750 Starter Motors

Post by Whickle »

My 1980 Z 7fiddy is doing the same thing....

I have 80k on the clock tho! Takes a bit to start. Ill be keen to know how much it costs to replace!
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Re: GPZ 750 Starter Motors

Post by Lurch »

Depends on a) the mechanic and b) finding the part.
The last starter clutch I did, I had to settle for a 2nd hand one. Big mistake. It only last a month and failed.
The new eingine I just dropped into Goose had just had the Starter clutch done. The guy said it was 'around' $200 for the part.
In theory the procedure for replacing it requires you to split the cases and pull the gearbox apart.
However a local mechanic here (Terry Kirk) has managed to perfect the following nack:
Essentially you can drop the sump, hold your arm in place, holding all the cogs etc in place. Quickly slide out the main shaft, swap the starter clutch with a new one, and slide the shaft back in.
I dont know the exact specifics, however he has done it many time, including on Goose.

Cheers,
Lurch
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damotm
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Re: GPZ 750 Starter Motors

Post by damotm »

bonester wrote:Should be OK at that mileage. More likely starter clutch which is a pain in the arse to fix! Starter can be rebuilt easily too. :)
Cheers
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damotm
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Re: GPZ 750 Starter Motors

Post by damotm »

Whickle wrote:My 1980 Z 7fiddy is doing the same thing....

I have 80k on the clock tho! Takes a bit to start. Ill be keen to know how much it costs to replace!
Yeah i will let you know how i go.
Honda XR75 :), KX80 D2, GPZ1100 B1, Aprilia RS125, Honda VT750, Restored GPz 750, Harley FXDX, Harley Street Bob
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damotm
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Re: GPZ 750 Starter Motors

Post by damotm »

Lurch wrote:Depends on a) the mechanic and b) finding the part.
The last starter clutch I did, I had to settle for a 2nd hand one. Big mistake. It only last a month and failed.
The new eingine I just dropped into Goose had just had the Starter clutch done. The guy said it was 'around' $200 for the part.
In theory the procedure for replacing it requires you to split the cases and pull the gearbox apart.
However a local mechanic here (Terry Kirk) has managed to perfect the following nack:
Essentially you can drop the sump, hold your arm in place, holding all the cogs etc in place. Quickly slide out the main shaft, swap the starter clutch with a new one, and slide the shaft back in.
I dont know the exact specifics, however he has done it many time, including on Goose.

Cheers,
Lurch
Thanks Lurch
Honda XR75 :), KX80 D2, GPZ1100 B1, Aprilia RS125, Honda VT750, Restored GPz 750, Harley FXDX, Harley Street Bob
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damotm
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Re: GPZ 750 Starter Motors

Post by damotm »

Lurch wrote:Depends on a) the mechanic and b) finding the part.
The last starter clutch I did, I had to settle for a 2nd hand one. Big mistake. It only last a month and failed.
The new eingine I just dropped into Goose had just had the Starter clutch done. The guy said it was 'around' $200 for the part.
In theory the procedure for replacing it requires you to split the cases and pull the gearbox apart.
However a local mechanic here (Terry Kirk) has managed to perfect the following nack:
Essentially you can drop the sump, hold your arm in place, holding all the cogs etc in place. Quickly slide out the main shaft, swap the starter clutch with a new one, and slide the shaft back in.
I dont know the exact specifics, however he has done it many time, including on Goose.

Cheers,
Lurch
Hey Lurch, so the starter clutch - is that attached to the larger starter ring inside the casing, the one that meshes with gear on the starter itself? Where is the starter clutch is what i am trying to say :?
Honda XR75 :), KX80 D2, GPZ1100 B1, Aprilia RS125, Honda VT750, Restored GPz 750, Harley FXDX, Harley Street Bob
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Re: GPZ 750 Starter Motors

Post by ProblemChild »

how d you go , if you still need help p m me & i ll explain as i have done this myself . :kuda:
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