Kz 1000 Engine rebuild cost, tips, advise?
- davelKZ1000
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Kz 1000 Engine rebuild cost, tips, advise?
16 Mar 2012 01:45 - 16 Mar 2012 01:59The Bike 1979 Kz1000 LTD
Top of engine is pre 79 lower of engine is 79. has pods, no air box.
I believe the bike has 60+k for miles
I bought the bike last spring but never got to get into it much.
I posted pics on here last spring and got some advice on running condition and I have decided to rebuild the engine and do a full restoration of the bike.
I am looking for sugestions?
I will start with the engine.
I think I want to keep the engine stock, basically bring it back to new condition.
What things will I need to send out? and what can I do?
What will I need to get for parts ect?
where should I start?
I am trying to make a budget so any ideas on cost for everything would be greatly appreciated.
below is a link to my post last year about the bike.
kzrider.com/forum/2-engine/446044-engine-compression79-kz1000
Thanks
Dave
Last edit: 16 Mar 2012 01:59 by davelKZ1000.
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- 2wheeltom77
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Re: Kz 1000 Engine rebuild cost, tips, advise?
25 Mar 2012 22:52
I was quoted $2000 to $2500 for a complete engine rebuild...'79 1000. Mine has 40K on it. I rode it for about 3 minutes after I bought the bike so I know it runs pretty good, but definitely could use a refresh. If I ever get the bike built we'll see.
1979 KZ1000 one off
1982 Honda CX500 (sold)
2008 FXSTC
1982 Honda CX500 (sold)
2008 FXSTC
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- etbike3135
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Re: Kz 1000 Engine rebuild cost, tips, advise?
25 Mar 2012 23:06
I would recomend a valve job and new guides if needed. New valve springs and a cam chain and also new rings. Put those things back right and the bike will run like new.
1973 Kawasaki Z1
18 years in dragbikes
18 years in dragbikes
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- Chaotic Reason
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Re: Kz 1000 Engine rebuild cost, tips, advise?
25 Mar 2012 23:47
I'm going to assume that someone has already recommended you to get a Factory Service Manual yes? The Clymer and Haynes are not as complete.
I'm rebuilding my bike at the moment, so this is what I have done. I got a complete gasket kit, new oil filter and O-rings for that, and then tore into the engine to see what I would actually need to get.
I was very happy to find out that the PO had done a rebuild from what I saw inside. My piston rings were brand new! The bevel was still on the oil rings, and I still had great cross-hatching in my cylinders. With your compression numbers, it sounds like new rings are a must; honing your cylinders might be a good idea, and if they are way out of spec, putting in new sleeves are what it might come down to.
Almost all of my idler gears were new, and the gaskets were in great shape as well.
(I'm glad I did the tear down though, because the PO didn't get off all the OLD gasket before putting on his new ones... mistake!)
The valves were in great shape, so I just had to lap them and clean off the carbon. I'm going to reassemble the head this week, so I'll know if I need to get some new shims for the buckets. You can't really tell about the valve guides till you inspect your valves, so check them out before you order new ones. (They can be a pain to replace, IMO) I didn't want to take a chance with the timing chain, so I replaced that. I also replaced my cylinder studs.
If you go this far into the engine, it might be a good idea to replace your shift shaft seal, I did this as well, but I had a nasty leak coming from there. You've done some cleaning to your electrical system yeah? I'd make sure that was done thoroughly. I'd also think about changing out the stock fuse box for a newer blade style one. That's on my list as well.
Your other post says you cleaned the carbs, but did you rebuild them? If you don't need to, then fine, but I figure if your going all out, go all out, and do it. I am one of those people that doesn't want to do a halfway job. I want to make sure I did everything, the best that I could do it. So while some of it may be overkill, it'll be something I won't have to wonder about later on.
As far as what you can do, and what you'll have to send out, that depends on you really. How comfortable are you working on your bike?
I'm rebuilding my bike at the moment, so this is what I have done. I got a complete gasket kit, new oil filter and O-rings for that, and then tore into the engine to see what I would actually need to get.
I was very happy to find out that the PO had done a rebuild from what I saw inside. My piston rings were brand new! The bevel was still on the oil rings, and I still had great cross-hatching in my cylinders. With your compression numbers, it sounds like new rings are a must; honing your cylinders might be a good idea, and if they are way out of spec, putting in new sleeves are what it might come down to.
Almost all of my idler gears were new, and the gaskets were in great shape as well.
(I'm glad I did the tear down though, because the PO didn't get off all the OLD gasket before putting on his new ones... mistake!)
The valves were in great shape, so I just had to lap them and clean off the carbon. I'm going to reassemble the head this week, so I'll know if I need to get some new shims for the buckets. You can't really tell about the valve guides till you inspect your valves, so check them out before you order new ones. (They can be a pain to replace, IMO) I didn't want to take a chance with the timing chain, so I replaced that. I also replaced my cylinder studs.
If you go this far into the engine, it might be a good idea to replace your shift shaft seal, I did this as well, but I had a nasty leak coming from there. You've done some cleaning to your electrical system yeah? I'd make sure that was done thoroughly. I'd also think about changing out the stock fuse box for a newer blade style one. That's on my list as well.
Your other post says you cleaned the carbs, but did you rebuild them? If you don't need to, then fine, but I figure if your going all out, go all out, and do it. I am one of those people that doesn't want to do a halfway job. I want to make sure I did everything, the best that I could do it. So while some of it may be overkill, it'll be something I won't have to wonder about later on.
As far as what you can do, and what you'll have to send out, that depends on you really. How comfortable are you working on your bike?
Michael
1980 KZ1000 shaft drive
1980 KZ1000 shaft drive
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- bountyhunter
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Re: Kz 1000 Engine rebuild cost, tips, advise?
26 Mar 2012 01:11 - 26 Mar 2012 01:13
60k+ miles probably needs to be bored as well. Oversize pistons and rings.
The machine work like boring and valve lapping/springs has to be done outside.
The machine work like boring and valve lapping/springs has to be done outside.
1979 KZ-750 Twin
Last edit: 26 Mar 2012 01:13 by bountyhunter.
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