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

- damotm
- Warming up
- Posts: 74
- Joined: Fri May 08, 2009 2:28 pm
- Bike: GPz750
- State: Queensland
- Location: Sunshine Coast
Re: GPZ 750 Starter Motors
Yeah i will let you know how i go.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!
Honda XR75
, KX80 D2, GPZ1100 B1, Aprilia RS125, Honda VT750, Restored GPz 750, Harley FXDX, Harley Street Bob

- damotm
- Warming up
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- Joined: Fri May 08, 2009 2:28 pm
- Bike: GPz750
- State: Queensland
- Location: Sunshine Coast
Re: GPZ 750 Starter Motors
Thanks LurchLurch 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
Honda XR75
, KX80 D2, GPZ1100 B1, Aprilia RS125, Honda VT750, Restored GPz 750, Harley FXDX, Harley Street Bob

- damotm
- Warming up
- Posts: 74
- Joined: Fri May 08, 2009 2:28 pm
- Bike: GPz750
- State: Queensland
- Location: Sunshine Coast
Re: GPZ 750 Starter Motors
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 sayLurch 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

Honda XR75
, KX80 D2, GPZ1100 B1, Aprilia RS125, Honda VT750, Restored GPz 750, Harley FXDX, Harley Street Bob

- ProblemChild
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Re: GPZ 750 Starter Motors
how d you go , if you still need help p m me & i ll explain as i have done this myself . 

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Im a wanted man
im slightly schizophrenic me & me & me agree
GRAVELRASH | rock on facebook or GRAVELRASH on Reverb nation