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Re: '83 GPz750-A1 malarkey.
Posted: Thu Jul 16, 2026 3:47 pm
by ZRX61
A_morti wrote: Thu Jul 16, 2026 10:42 am
ZRX61 wrote: Thu Jul 16, 2026 12:52 am
and they don't have the pucks/isolators...
Original piston without puck: 30.62mm
Original with puck: 34.75mm
New, without puck: 31.67mm
Will that still work, or is there a risk the pistons could pop out when the pads get low?
I'm gonna call BrakeCrafters today... There isn't enough room for the pistons to fall out
Re: '83 GPz750-A1 malarkey.
Posted: Thu Jul 16, 2026 7:41 pm
by ZRX61
Spoke with the brake co, good to go. Apparently those pucks make the calipers run hotter than without.
In other news.. Progress!!
- IMG_20260716_113235701.jpg (1.56 MiB) Viewed 54 times
Ok, I cheated a bit, the metal sleeves that fit inside the rubber grommets for the grab rail are sitting in the Evaporust right now, so it's not bolted on...
and there are still two small cracks to fix in the tail doodad.
and I need an M4 & M5 tap to chase some threads in various parts, including the strakes. (just ordered)
Re: '83 GPz750-A1 malarkey.
Posted: Fri Jul 17, 2026 8:31 pm
by ZRX61
Today's plan was:
Fit exhaust
Fit carb manifolds
Change oil/filter
Fit carbs
Fit pods
Get it running...
What actually happened was:
Left my goddamn glasses at home
Put the tail on for a pic..
Put the tail back in the car
Dumped oil & filter
Moved bike under the swamp cooler
Installed the stud that came out with the nut when I took the exhaust off.
Installed ignition cover
Discover the manifolds don't fit...The engine side is the right size, the carb side is the right size, but the fucking holes for the M6 Allens that bolt it to the head are too far apart...
Came home.
So now I need to drive out to APE in Rosamond next week & see if they have the right manifolds. Probably keep the wrong ones because they will fit other Kaw heads.
- IMG_20260717_101957309.jpg (2.17 MiB) Viewed 23 times
- IMG_20260717_110458275.jpg (2.31 MiB) Viewed 23 times
- IMG_20260717_112713388.jpg (1.55 MiB) Viewed 23 times
Re: '83 GPz750-A1 malarkey.
Posted: Fri Jul 17, 2026 8:46 pm
by ZRX61
& Yes, the oil filter gubbins is assembled correctly.
Most Kaw's are: plate, spring, washer, filter, cup
These are: plate, cup, spring, washer, filter.
I have no idea why.