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Re: '83 GPz750-A1 malarkey.

Posted: Tue Jun 30, 2026 11:01 pm
by ZRX61
Visited the GPz750... Noticed the right clip on is bent & the plate that goes between the frame tubes above the battery is missing.. & the two holes for the bolts that hold the plate in place have snapped off bolts in them...

Re: '83 GPz750-A1 malarkey.

Posted: Tue Jun 30, 2026 11:44 pm
by ZRX61
Found a NOS OEM clip-on for $10.29. Bargain.

Re: '83 GPz750-A1 malarkey.

Posted: Wed Jul 01, 2026 4:30 pm
by ZRX61
Off to Rosamond to visit APE & spend some $$...

Re: '83 GPz750-A1 malarkey.

Posted: Wed Jul 01, 2026 9:05 pm
by ZRX61
WooT!! Pods & manifolds, $145.
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Re: '83 GPz750-A1 malarkey.

Posted: Wed Jul 01, 2026 9:26 pm
by ZRX61
Now, choices..
Option one: Do I put the news pods on the GPz750...

Option two: Put them on the ZRX11 & take the ones on the ZRX11 & put them on the GPz750?

I'm tempted to put the new ones on the ZRX with the spiffy green filter oil I have, so extra green on the ZRX11 making it even faster...

Re: '83 GPz750-A1 malarkey.

Posted: Thu Jul 02, 2026 1:28 am
by ZRX61
Dismantled three brake calipers (fronts & the rear are the same). Had previously ordered rebuild kits without the pistons.. however, I need the pistons...

Bugger.

Gonna order three new kits WITH the pistons (FFS).. & I guess I now own 3 rebuild kits for the '83 GPz11 which has the same brake calipers etc.

Calipers, mounts & other gubbins had three 30 min sessions in the ultrasonic. Calipers were originally anodized, but that's all faded to shit on the exposed surfaces (which is why the rear caliper is still dark). May paint them, or install as is...undecided.
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bluergh... Can't understand why people reuse the same solution in ultrasonics for weeks, all that snarge on the bottom decreases the efficiency of the machine.. but they save maybe 10c on detergent, the cheap fucks.
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Re: '83 GPz750-A1 malarkey.

Posted: Thu Jul 02, 2026 2:59 pm
by A_morti
You're in the desert, right? Anodising loominum parts is essential if they'll ever see salt, but maybe optional where you are.
They'll look nicer if they match each other though.

Re: '83 GPz750-A1 malarkey.

Posted: Thu Jul 02, 2026 3:47 pm
by ZRX61
A_morti wrote: Thu Jul 02, 2026 2:59 pm You're in the desert, right? Anodising loominum parts is essential if they'll ever see salt, but maybe optional where you are.
They'll look nicer if they match each other though.
They use grit, not salt on the roads here when it gets icy or snows. If I go with caliper paint they'll most likely end up silver.

We don't get proper snow very often on the desert floor, altho the local mountains get several feet every year & the freeway to LA sometimes get closed. That kid in the pic is 29 now...
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Re: '83 GPz750-A1 malarkey.

Posted: Thu Jul 02, 2026 8:45 pm
by ZRX61
Green pods :)
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Re: '83 GPz750-A1 malarkey.

Posted: Thu Jul 02, 2026 10:58 pm
by ZRX61
Cleaned up the caliper brackets & gave then a quick squirt of that Steel-It paint. In related news, that stuff matches the original finish on the GPz750/1100 rear brake levers. I hadn't noticed when I painted the lever off the GPz750, then I was working on the GPz11 last week & realized it's a perfect match.
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Re: '83 GPz750-A1 malarkey.

Posted: Sat Jul 04, 2026 12:26 am
by ZRX61
Decided the green pods are going on the ZRX11.

Unmasked the brake brackets.

Fixed crack on tail doodad.

Put the gas tank & front fender in the bed of the truck, removed fairing from bed of truck (lack of work/storage space). Now I can start working on the fairing. First off will be take it all apart & then there will be lots of plastic welding, followed by the same sanding/buffing the tank, tail & fender got.

Ordered the brake kits with the pistons.... arsebiscuits.

Re: '83 GPz750-A1 malarkey.

Posted: Sun Jul 05, 2026 9:17 pm
by ZRX61
WooT! Other two rotors showed up
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Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 2:20 am
by ZRX61
BIG tote for the gas tank. $6.99 at Costco. Not going to fill it with stuff to remove the rust in the tank, this is to salvage whatever I use in case it leaks out.
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Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 2:23 am
by ZRX61
Fairing dismantled, hardware is in the Evaporust until tomorrow. Then after derusting it will go in the tumbler.
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This is the damage I'm dealing with where the screen mounts...
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Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 2:24 am
by ZRX61
Gonna try the baking powder/superglue method to start

Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 8:57 am
by cvilla
Interesting, how does that work, useful to know? Cheers C

Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 3:11 pm
by ZRX61
FFS, discovered another missing/unavailable/kinda critical part. There's a bracket that bolts to the frame & secures the back of the tank & the front of the seat (35052 5001).
The Turbo appears to have an identical part, but that part is # 32052 1180.

None.. anywhere.
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Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 3:55 pm
by A_morti
Annoying thing being, plenty of those bikes got scrapped or are sat somewhere rotting, with that bracket perfectly intact.
TBF, you did set yourself up for this by choosing to restoring a 43 year old bike.

Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 4:30 pm
by ZRX61
cvilla wrote: Tue Jul 07, 2026 8:57 am Interesting, how does that work, useful to know? Cheers C
Exothermic reaction, gets really hot as it kicks off & emits methyl cyanide gas so don't snort the fumes.



Re: '83 GPz750-A1 malarkey.

Posted: Tue Jul 07, 2026 4:36 pm
by ZRX61
A_morti wrote: Tue Jul 07, 2026 3:55 pm Annoying thing being, plenty of those bikes got scrapped or are sat somewhere rotting, with that bracket perfectly intact.
TBF, you did set yourself up for this by choosing to restoring a 43 year old bike.
I've restored WWII & older aircraft to flight... including one that spent decades at the bottom of Lake Michigan. Restoring a bike is gravy compared to that kinda of project.
There's a chance the 550 has the same bracket, but it's not shown on the parts diagrams.

There's a bike salvage yard on the other side of town that's only open 5-7pm, I need to go have a poke about over there.