Terrible motor swap idea kz440
- sf4t7
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Re: Terrible motor swap idea kz440
22 Dec 2025 16:25
Sounds kinda like at least one previous owner decided to cut their losses and pass it on...
Scotty
1974 Z1A
Yoshimura 987, 10.25:1
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
1974 Z1A
Yoshimura 987, 10.25:1
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
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- Nerdy
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Re: Terrible motor swap idea kz440
22 Dec 2025 17:29Thanks for all the considerations everyone. At this point I'm just trying to justify the purchase. Is everything in the photos worth the $100 (that may be subjective) and is it possible to "get my money back" by reselling the parts listed in the pictures? Just a lot of thinking to be done considering the alternate routes. The main thing right now is I'm not sure if my parents would be supportive of this decision since I already have two bikes in their garage
Most definitely. The bodywork isn't terribly visible in the pics, but those pieces (in good shape) should get you more than $100 - ditto for the Kerker exhaust.
If you have a swap meet event nearby during the summer, you can sell stuff without using eBay.
One thing I did for a project was buy a basket case 440B (same condition as your 550) and then found a 440B rolling frame with a clear title - boom, street-legal frankenbike project.
1967 Yamaha YCS1 Bonanza
1980 KZ440B
1981 Yamaha XT250H
1981 KZ440 LTD project bike
1981 GPz550
2013 Yamaha FZ6R
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Re: Terrible motor swap idea kz440
27 Dec 2025 17:58
Update: I got the bike! It's not in the best condition but the price reflects that. Im not sure what I'm going to do with it yet but its pretty cool. It turns out it is a 1985 gpz550. Fitting it all in my little vw golf proved difficult
1982 KZ1000M2 CSR
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
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- sf4t7
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Re: Terrible motor swap idea kz440
28 Dec 2025 05:16
Ooh - a puzzle! Looks like it's probably all there.
Now for the fun part
Plenty of help here on KZR, just ask.
Now for the fun part
Plenty of help here on KZR, just ask.
Scotty
1974 Z1A
Yoshimura 987, 10.25:1
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
1974 Z1A
Yoshimura 987, 10.25:1
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
The following user(s) said Thank You: Nessism
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Re: Terrible motor swap idea kz440
28 Dec 2025 07:47
Yeah most of it is there just missing some parts like the instrument cluster, ignition switch, battery tray, airbox, and a bunch of bolts. I think I'm going to follow Wookies advice for now and try to put it back together.
1982 KZ1000M2 CSR
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
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Re: Terrible motor swap idea kz440
28 Dec 2025 07:57
Good luck!
A breeze from the west.
‘90 Kawasaki ZR550 Zephyr
‘11 Triumph Daytona 675 SE (project bike)
‘90 Kawasaki ZR550 Zephyr
‘11 Triumph Daytona 675 SE (project bike)
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Re: Terrible motor swap idea kz440
29 Dec 2025 09:24
Alright guys I need your help! I can't tell if these jets are different from standard sizes. My main curiosity is to see whether they are jetted for pods since it didn't come with an airbox. Thanks in advance!
1982 KZ1000M2 CSR
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
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Re: Terrible motor swap idea kz440
29 Dec 2025 10:23
The jets should have a number on them, and if they are Keihin carbs, their stylized K. The number tells you what size they are, and you can cross-reference that with the factory service manual (FSM). POD filters will require a size or two up from stock.
A breeze from the west.
‘90 Kawasaki ZR550 Zephyr
‘11 Triumph Daytona 675 SE (project bike)
‘90 Kawasaki ZR550 Zephyr
‘11 Triumph Daytona 675 SE (project bike)
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Re: Terrible motor swap idea kz440
29 Dec 2025 10:53
I just did some research and these are tk27 carbs and the main jets are supposed to be hexagonal to take out with a wrench
My main problem is I dont know what size these jets are since they dont have numbers...
My main problem is I dont know what size these jets are since they dont have numbers...
1982 KZ1000M2 CSR
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
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Re: Terrible motor swap idea kz440
29 Dec 2025 12:48
Countdown starts now ... tick tick tick tick ...
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Re: Terrible motor swap idea kz440
31 Dec 2025 11:01
Alright guys I got a lot put together right now. Only things I can't put together yet are the front wheel and the suspension (since it doesn't have the steering bearings) and the engine (since i don't have all parts for the motor mounts). Before I put the engine in, I was gonna ask you guys what's the best way to check the engines state? It was left in the guys workshop where he did a lot woodwork so it has a fair bit of sawdust and cobwebs in the exhaust ports. Also, what's the best way to turn over the engine without causing possible damage? I'll try to get you guys some pictures, but I want to clean my "workspace" before showing you guys...
1982 KZ1000M2 CSR
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
1983 KZ440D5 LTD
1985 GPz 550A2?
Craig
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Re: Terrible motor swap idea kz440
31 Dec 2025 11:11Vacum out as much as you can (on the upside being the exhaust side when you spin it over it should blow the rest out) then remove the plugs and squirt some WD40 in there - with the plugs still removed pull the timing cover and carefully rotate the crank clockwise, it it feels ok (no tight spots or noises) then you should be ok to spin it on the starter - still with the plugs out (assuming it has oil in it !!)Alright guys I got a lot put together right now. Only things I can't put together yet are the front wheel and the suspension (since it doesn't have the steering bearings) and the engine (since i don't have all parts for the motor mounts). Before I put the engine in, I was gonna ask you guys what's the best way to check the engines state? It was left in the guys workshop where he did a lot woodwork so it has a fair bit of sawdust and cobwebs in the exhaust ports. Also, what's the best way to turn over the engine without causing possible damage? I'll try to get you guys some pictures, but I want to clean my "workspace" before showing you guys...
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
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