77 KZ1000 with 75 Z1 engine project
- zed1015
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Re: 77 KZ1000 with 75 Z1 engine project
09 Aug 2026 02:04Yes!Zed 1015, you do the new rubbers in the the choke plungers and the air corrector jets dont you?
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
www.kzrider.com/forum/23-for-sale/611992...lide-mikunis?start=1
www.kzrider.com/forum/23-for-sale/611992...lide-mikunis?start=1
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- suzukidude250
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Re: 77 KZ1000 with 75 Z1 engine project
09 Aug 2026 14:35 - 09 Aug 2026 14:36
I thought you did, you did them when I got the bike, got it running pretty decent!
Last edit: 09 Aug 2026 14:36 by suzukidude250.
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- Injected
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Re: 77 KZ1000 with 75 Z1 engine project
10 Aug 2026 07:46 - 10 Aug 2026 07:51I just put together a 1200 engine with big valve head/.425"cams/ported w VM33 smoothbores and I used the stock bolts/cylinder studs. Most times these engines have only ever been apart once, some never, so the bolts are usually OK to reuse.Question:
I have a full set of 50 year crankshaft bolts that I can use to put it back together. Kinda wondering how good they are seeing how I broke one and the other case has a broken one in it that's going have to be removed. I'm thinking a set of APE crankshaft studs with the support plate and some cylinder studs might be a good idea at this point. I'm going to send the crank and cases to Bill Bune anyway to have the cases bead blasted and the crank looked over and maybe welded, might as well have him do the studs while he has it.
The APE parts were developed for drag/road racing where you would tear down once or twice a year (case studs) A 10.5:1 street piston does not need to be clamped down with massive force so I don't think the investment is warranted. If you were doing a Turbo build that would be a different story on the cylinder studs/nuts.
You can easily fabricate the crank support plate with a $4 piece of CR flat bar. You can get the crank welded/trued for reasonable money if they don't disassemble it. This is assuming that the parts your working with are not trashed. I started off with cases that had never been split and a virgin crank that was in phase.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
Last edit: 10 Aug 2026 07:51 by Injected. Reason: more info
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- suzukidude250
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Re: 77 KZ1000 with 75 Z1 engine project
28 Oct 2026 23:50
Hey guys, sorry for not having any updates or anything for a while. I picked up a pretty sweat ZRX1200R, then got hit by a hurricane and the throw-out bearing went out in my truck in the same week. So the KZ is kinda on the back burner for now.
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- TexasKZ
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Re: 77 KZ1000 with 75 Z1 engine project
29 Oct 2026 10:58
Sweet ride. It will spoil you.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD slowly moving toward resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/forum/11-projects/620336...amateur-build-thread
1981 KZ1000 LTD slowly moving toward resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/forum/11-projects/620336...amateur-build-thread
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