'83 GPz750-A1 malarkey.

ZRX61 · Post by **ZRX61** » Thu May 21, 2026 3:23 pm

Apart from the carb overhaul I'm now waiting on parts & stuff to show up.
Total so far: $808.67 (not including the Ultrasonic) Ouch!

Still need a fairing/screen, new APE pods, battery, tires, brake rotors & powdercoating.... and the kickstand gubbins.
Plus redo the seat.

ZRX61 · Post by **ZRX61** » Thu May 21, 2026 3:30 pm

and a paint job *at some point*.. Paint mate quoted me about $2k based on looking at the GPz11 last Sunday.. which isn't to bad seeing as the usual price is $500 per piece.. so tail, side covers, tank, fairing & front fender is six pieces/$3k

Which is the lazy bugger cost as I'm more than capable of doing it myself.

ZRX61 · Post by **ZRX61** » Thu May 21, 2026 3:41 pm

Still no movement on the rear brake lever pivot. If I had my press set up I'd just put some pressure on the doodad & walk away for a week.

Maybe an hour in the ultrasonic would result in some progress.

Rear brake lever is in the tumbler which is using stainless steel pins as the media, timer set to 90min.

ZRX61 · Post by **ZRX61** » Thu May 21, 2026 5:56 pm

Oops, buggered up editing an earlier post & ended up deleting stuff instead. Attempting to recreate:

Manual $20 (arrived)
Exhaust gaskets: $19.77 (arrived)
Tail/strakes/grab rail: $77.88
Rear m/c: $30.69
Side stand mount doodad: $27.80
Footpeg mounts: $80.63
Brake caliper rebuild kits (3): $80.55
Carb rebuild kits: $104.52
Ignitor/pick up coils & plate etc: $75 (arrived & fitted)
Ignitor cover gasket: $8.11
Tank bungs: $12.44
Generator cover (NOS) $188.01 (ouch!!)
Fuel cross feeds & O rings: $33.20
Mirrors: $50.06 (arrived).... neither of which went on the GPz750, but the right one went on the GPz11.... so that doesn't really count.

Post by **Count Steer** » Thu May 21, 2026 6:12 pm

Grand total so far?

I could add it all up but, if you've already done it....

PS NOS? I'm assuming it's not got nitrous oxide fitted!

Post by **Rockburner** » Thu May 21, 2026 7:46 pm

Count Steer wrote: Thu May 21, 2026 6:12 pm Grand total so far?

I could add it all up but, if you've already done it....

PS NOS? I'm assuming it's not got nitrous oxide fitted!

New Old Stock.

Ie shit they couldn't sell 30 years ago.

Post by **Skub** » Thu May 21, 2026 8:18 pm

It'll take some litres to fill that baby.

ZRX61 · Post by **ZRX61** » Thu May 21, 2026 9:20 pm

Got snookered, something is holding the choke bar in place & I can't see WTF is it, probably a small Ping!FuckIt!

Also got a mullared airscrew(?) that doesn't want to come out. It's currently drowned in Kroil. Got all the other doodads removed though (except the choke doodads).

They've had an hour in the tank so far, they're going back in again (probably tomorrow) now I've got the emulsion tubes out. They'll also be getting a soda blast to remove the buggered paint

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ZRX61 · Post by **ZRX61** » Thu May 21, 2026 9:24 pm

Skub wrote: Thu May 21, 2026 8:18 pm It'll take some litres to fill that baby.

They call it a 30l tank, but that's if you fill it all the way to the top. I put 5 gallons in it via a bucket I filled from the hot tap in the bath.

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 1:12 am

Shipped:

ZRX61 wrote: Thu May 21, 2026 5:56 pm Manual(arrived)
Exhaust gaskets(arrived)
Tail/strakes/grab rail
Rear m/c
Side stand mount doodad(arrived)
Footpeg mounts
Brake caliper rebuild kits (3)
Carb rebuild kits
Ignitor/pick up coils & plate etc (arrived & fitted)
Ignitor cover gasket
Tank bungs
Generator cover (arrived)
Fuel cross feeds & O rings
Mirrors (arrived).... neither of which went on the GPz750, but the right one went on the GPz11.... so that doesn't really count.
Speedo/tach assembly (arrived)

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 1:16 am

Rockburner wrote: Thu May 21, 2026 7:46 pm
Count Steer wrote: Thu May 21, 2026 6:12 pm Grand total so far?

I could add it all up but, if you've already done it....

PS NOS? I'm assuming it's not got nitrous oxide fitted!
New Old Stock.

Ie shit they couldn't sell 30 years ago.

I worked at the dealer that cover originally came from....Could have probably walked off with it back in the day. The guy had a habit of under-paying so quite a few employees made up the difference with parts out the back door... and that's all I'm saying about that

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 1:25 am

Count Steer wrote: Thu May 21, 2026 6:12 pm Grand total so far?

There is a budget, of sorts.. which might have got me a decent one, but I restore things (cars, bikes, tools, warbirds etc... even buildings) so I want to bring this one back.

This guy is fucking dreaming, my budget is about 30% of what he spent, but he paid someone to do the work & if you do that, you NEVER get your money back.

https://www.facebook.com/marketplace/it ... =top_picks

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 1:40 am

Bunch of hardware is in the tumbler, set the timer for the max 3 hours.

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Slides with the needles poked through the box so they're not resting on the diaphragms...

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.

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 1:52 am

Need to swing by Horrible Fright & pick up a bag* of blasting soda... May even splurge on a proper soda blaster instead of my 25yo $5 cheater set up as I still have a week of "home alone & unsupervised"

https://www.harborfreight.com/air-tools ... aning.html

Gonna be like Chrimle here when all the various bike gubbins arrives. A mate sold me a speedo/tach cluster for $25, which are not only in better condition than the ones on the bike, but they also have half the mileage

*50lb... should be enough for the carbs

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 2:17 am

Had a look in the tumbler after 2 hours, reset the timer to 3 hours again, will probably do that again before I go to bed tonight.

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 3:04 pm

Spiffy tumbled gubbins...

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ZRX61 · Post by **ZRX61** » Fri May 22, 2026 8:39 pm

Still can't get the rear brake lever pivot to move even 0.0000in. It's like the damn thing is welded in place.

In other news:
6lb tub of citric acid powder showing up today.

Post by **KungFooBob** » Fri May 22, 2026 8:44 pm

After you've tumbled them are you gonna replate them?

I've never tried it, but zinc replating looks doable at home.

ZRX61 · Post by **ZRX61** » Fri May 22, 2026 9:21 pm

NOS Generator cover & Speedo/tach showed up. Mate sold me the speedo/tach for $25

I especially like that the black speedo face is fading to the faster green

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ZRX61 · Post by **ZRX61** » Fri May 22, 2026 9:31 pm

KungFooBob wrote: Fri May 22, 2026 8:44 pm After you've tumbled them are you gonna replate them?

I've never tried it, but zinc replating looks doable at home.

No need here in the desert, they won't corrode

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'83 GPz750-A1 malarkey.

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