1980 KZ 750 resurrection
- brokenspoke
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1980 KZ 750 resurrection
20 Mar 2015 21:12
Hi all,
I just picked up a new project, it's a 1980 KZ750E. It has been sitting for about 10 years and needs some TLC to get it going again. I saw it on CL and thought I would go take a look and it was mostly complete, so $300 later I was on my way home. A previous owner removed the carbs and disassembled them and then gave up. I got the four carbs that I think came off this bike and four additional parts carbs that are similar but not the same. All the carb parts were dumped in a bucket and unfortunately some parts are missing. Here is a picture of the bike.
I just picked up a new project, it's a 1980 KZ750E. It has been sitting for about 10 years and needs some TLC to get it going again. I saw it on CL and thought I would go take a look and it was mostly complete, so $300 later I was on my way home. A previous owner removed the carbs and disassembled them and then gave up. I got the four carbs that I think came off this bike and four additional parts carbs that are similar but not the same. All the carb parts were dumped in a bucket and unfortunately some parts are missing. Here is a picture of the bike.
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- brokenspoke
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Re: 1980 KZ 750 resurrection
20 Mar 2015 21:28 - 20 Mar 2015 21:32
When I picked it up we couldn't get spark, but after sorting out some wiring issues last night I got spark and was able to get it to "pop" over with a little starting fluid put into the intake. The brakes were dragging badly, the paint is heavily faded, the hand grips are gone, the carbs are a mess but the seat is good so I can at least sit on it and make engine noises .
Today I sorted out the bucket of carburetor parts and determined I have most of the one set of carbs. I will need gaskets and some o-rings and one mixture screw. These are not the original carbs that came with the bike, I think they are Mikuni smooth bore carburetors, but I am not 100% sure nor do I know the size. Let me know if you recognize them. The only markins I can find besides the Mikuni name is a R67 on one side of the mounting flange and the number 299 on the other.
Today I sorted out the bucket of carburetor parts and determined I have most of the one set of carbs. I will need gaskets and some o-rings and one mixture screw. These are not the original carbs that came with the bike, I think they are Mikuni smooth bore carburetors, but I am not 100% sure nor do I know the size. Let me know if you recognize them. The only markins I can find besides the Mikuni name is a R67 on one side of the mounting flange and the number 299 on the other.
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Last edit: 20 Mar 2015 21:32 by brokenspoke. Reason: adding corect pics
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- brokenspoke
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Re: 1980 KZ 750 resurrection
20 Mar 2015 21:44
I am not sure how I want this bike to be original, cafe racer, or? I really like the idea of a cafe racer based on some I have seen, so I am leaning that way for now. First I want to get it running and mechanically sound before I do much custom work.
I started on the brakes today. The rear caliper was sticking badly and the fronts weren't much better. I removed all the calipers and the master cylinder on the handlebar. Disassembled them and cleaned out the old fluid and crud. I have a small bead blaster so I cleaned them each up and am just waiting on new seals.
I started on the brakes today. The rear caliper was sticking badly and the fronts weren't much better. I removed all the calipers and the master cylinder on the handlebar. Disassembled them and cleaned out the old fluid and crud. I have a small bead blaster so I cleaned them each up and am just waiting on new seals.
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- brokenspoke
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Re: 1980 KZ 750 resurrection
26 Mar 2015 21:34
I scored a clean (meaning not horrendously hacked apart by a well meaning but low skilled mechanic) rack of carbs. I will have to soak the jets and a few other parts and it should run like new. Started painting a few of the smaller parts today. Slowly progressing.
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- Nessism
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Re: 1980 KZ 750 resurrection
27 Mar 2015 05:22
The US market 750's came with Keihin CV type carbs. Before messing with those VM's any further you may want to check to see if they fit into the carb holders on the head. You may have to either get some 650 carb holders or just get a set of the proper carbs.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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Re: 1980 KZ 750 resurrection
27 Mar 2015 07:23
That's what I was thinking. That is why it was only $300. Even if you pay $300 more for a good set of original carbs, you're still ahead of the game.
Steve
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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- brokenspoke
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Re: 1980 KZ 750 resurrection
29 Mar 2015 16:07
I should have been more clear on my last post but the suggestion of getting a clean set of Keihin carbs is exactly what I did. I also had a new set of carb boots and a owners manual put in on the deal. So the carb issue is some what resolved now.
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Re: 1980 KZ 750 resurrection
29 Mar 2015 16:20
That was a hell of a deal for $300. What else is wrong with it? New batterY?
steve
steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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Re: 1980 KZ 750 resurrection
29 Mar 2015 22:29
It has a lot of little things wrong with it. The brakes were hanging up and needed to be cleaned/rebuilt, the wiring had a few issues, fork seals, and it sat outside for some time so the paint is really faded. On the good side the seat is clean and not tore up, the tank is clean inside, mostly complete, clean title, etc. I'm looking forward to getting it going and having a little fun with it this summer.
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Re: 1980 KZ 750 resurrection
30 Apr 2015 22:14
Work has been really busy and I haven't done much in the shop lately. But tonight I was able to put some of the painted pieces back on the bike. so a few hours of sorting hardware, cleaning little bits, and assembly and it starts to look like a bike again. I will have to get some pictures in the next few days.
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Re: 1980 KZ 750 resurrection
16 Mar 2016 12:12 - 16 Mar 2016 12:29
It's been a while but here are a few pictures of the bike as of the other day...
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Last edit: 16 Mar 2016 12:29 by brokenspoke.
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Re: 1980 KZ 750 resurrection
16 Mar 2016 12:13Attachment mastercylinderbefore.jpg not found
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