Hello,
Does anyone know if the club has the OEM piston ring compressor tool for KZ650B that is available for loan/hire?
It’s Kawasaki part number 57001-531
If anyone can help please let me know.
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kawasaki 57001-531 Piston Ring Compressor
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- warren3200gt
- Hardcore

- Posts: 3102
- Joined: 13th Jun 2014
- Location: Dartford Kent
Re: kawasaki 57001-531 Piston Ring Compressor
Bores have a generous tapper on them. You don't need a ring compressor.
PUM 488 June 2026
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
Re: kawasaki 57001-531 Piston Ring Compressor
Thanks Warren,
I’ve used one of these before on my A1 and I thought it was a great piece of kit.
Kawasaki obviously thought it was a good idea as well and to be honest, when the time comes to fit the barrels I’d rather have it and not use it than not have it and need it.
I’m a way off fitting the top end yet as the head, barrels and cam cover etc are away for vapour blasting.
Cheers.
I’ve used one of these before on my A1 and I thought it was a great piece of kit.
Kawasaki obviously thought it was a good idea as well and to be honest, when the time comes to fit the barrels I’d rather have it and not use it than not have it and need it.
I’m a way off fitting the top end yet as the head, barrels and cam cover etc are away for vapour blasting.
Cheers.
- warren3200gt
- Hardcore

- Posts: 3102
- Joined: 13th Jun 2014
- Location: Dartford Kent
Re: kawasaki 57001-531 Piston Ring Compressor
I've never had to use one. On one occasion I had a particular bore that had an issue with the taper but a piece of plastic drain pipe about 10mm long and a slice taken out of it to make a closed "C" and a cable tie around it on the rings sorted it.
PUM 488 June 2026
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
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