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z1100r pistons
Posted: Tue Oct 30, 2018 3:46 pm
Author: jez1100r
z power tell me that z1100r and gpz 1100 use different pistons . the only rings available are genuine 1st oversize . can anyone tell me how to check if the pistons fitted in my bike are actuality Kawasaki , or aftermarket .
Re: z1100r pistons
Posted: Tue Oct 30, 2018 5:08 pm
Author: Al
The one on the left is an original GPZ1100B 17mm pin.
The one on the right is an original ZX1100 as in Unitrak and 1100R1 18mm pin.
AL
Re: z1100r pistons
Posted: Tue Oct 30, 2018 5:17 pm
Author: 8 Valve Mark
yours look to be 1st over-size (. 50) eg +half mm. should have Art stamps too.
Re: z1100r pistons
Posted: Tue Oct 30, 2018 5:25 pm
Author: jez1100r
what is an art stamp please
Re: z1100r pistons
Posted: Tue Oct 30, 2018 5:30 pm
Author: 8 Valve Mark
take a look at AI's second picture above. art=genuine kawasaki pistons.. it should be directly opposite the 184 stamped on your photos.
Re: z1100r pistons
Posted: Tue Oct 30, 2018 6:03 pm
Author: jez1100r
thank you i have sent the pictures to my mechanic
I thought ZX1100 Unitrak (gpz a1,2,3)and 1100R1 had the same engine but zpower say they have different pistons
Re: z1100r pistons
Posted: Tue Oct 30, 2018 7:19 pm
Author: gpjes
zx11 had Teflon topped pistons and 1100r inlets not hand polished by elfin Japanese like gpz, this I know coz i'm a sad sad anorak
Re: z1100r pistons
Posted: Tue Oct 30, 2018 8:03 pm
Author: z1bman
z1100r & gpz1100 a1/a2 use the same pistons same part numbers gpz1100 b/1/b2 are different
Re: z1100r pistons
Posted: Wed Oct 31, 2018 9:47 am
Author: rickm
Interesting that the Unitrac pistons have longer skirts and presumably must be heavier than the GPz1100b pistons?
Is that maybe partly why they need a bigger pin?