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Gpz1100 a1 1983 barrels

Posted: Sat Mar 08, 2025 3:37 pm
Author: stusco
Anyone got a spare set for sale they will probably be getting bored too 1170 so bore don’t have to be mint but the fins and faces need to be in good condition

Re: Gpz1100 a1 1983 barrels

Posted: Sun Mar 09, 2025 2:11 pm
Author: stusco
Im looking on ebay and found some barrels but they are not the same as mine
IMG_1550.png

Mine doesn’t have a recess round the corner stud holes
What does that mean?

Re: Gpz1100 a1 1983 barrels

Posted: Sun Mar 09, 2025 2:13 pm
Author: stusco
IMG_1538.jpeg

Re: Gpz1100 a1 1983 barrels

Posted: Mon Mar 10, 2025 9:47 am
Author: Al
They tried different numbers of counter-bores; 4 and 2 and more and less and none. All leaked at some point. You can use any of the 1100 sets; z1100 shaft, Gpz1100 B and Unitrak and Z1100R1, ZN so long as you use an MLS gasket which i guarantee will not leak. Cometic one-piece and you'll have to take a chance.
If you have concernes beyond that you can swop the liners into your existing barrels relatively easily.
AL

Re: Gpz1100 a1 1983 barrels

Posted: Mon Mar 10, 2025 11:13 am
Author: stusco
Looking at the parts catalogue it looks like the ones on ebay from Germany are A2 and have o’seals between barrel and head

Re: Gpz1100 a1 1983 barrels

Posted: Wed Mar 12, 2025 5:48 pm
Author: DeadZedDave

Re: Gpz1100 a1 1983 barrels

Posted: Fri Mar 14, 2025 10:04 am
Author: stusco
Thanks for the replys ive got a set well Grumpy 1260 has, he is reboring the tomorrow to fit my pistons.