Starter clutch failing on my KZ750 H LTD

  • SWest
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  • 10 22 2014
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28 Apr 2015 17:33 - 28 Apr 2015 17:34 #669913 by SWest
Replied by SWest on topic Starter clutch failing on my KZ750 H LTD
I can't remember having this problem on my Z1. Yeah, I've changed things now and then but the clutch has never failed like these. My rotor is old along with my spares, springs etc. so that's why I asked. Being buried in the engine, the springs could be getting hotter? All I know is all the electric starters I've worked on, that are chain driven act like this, 70's Honda's whatever.
Steve
Last edit: 28 Apr 2015 17:34 by SWest.
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29 Apr 2015 21:33 - 29 Apr 2015 21:34 #670060 by Jamesch007
Replied by Jamesch007 on topic Starter clutch failing on my KZ750 H LTD
thanks everyone! I was able to find a video on youtube on how to do it and thought I would share for future reference if anyone needs it!



Last edit: 29 Apr 2015 21:34 by Jamesch007.
The following user(s) said Thank You: 650ed, KZB2 650

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30 Apr 2015 17:53 #670185 by JR
Thanks for posting the video
this going to be very useful.
Bookmarked for future reference.

1980 kz750E1, Delkevic exhaust

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01 May 2015 04:14 #670232 by KZB2 650
Replied by KZB2 650 on topic Starter clutch failing on my KZ750 H LTD
How I missed that I don't know and its been on there for a year..... maybe we don't need the gear puller and pusher after all Randombeat.......

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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01 May 2015 05:24 #670239 by TexasKZ
Replied by TexasKZ on topic Starter clutch failing on my KZ750 H LTD
The guy in the video keeps referring to Phillips-head screws. He is mistaken. Kawasaki has always used JIS (Japanese Industrial Standard) screws. They look very similar, but using a Phillips screwdriver on stuck or very tight JIS screws will lead to grief. That is why we all see so many buggared up screw heads. 650Ed has posted several times a good explanation with pics, and describes how to alter a Phillips bit to fit the screws properly. A proper bit is well worth the expense and effort.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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03 May 2015 13:34 #670511 by KZB2 650
Replied by KZB2 650 on topic Starter clutch failing on my KZ750 H LTD
Ok I know I'm gonna get grief for this but according to the "Clymer" manual it says you don't need to remove the circlip and gear at the 3 minute mark on the video and you can just tap the assembly (gear and bearing) out and back home both without removing it.

I have a factory manual too and it shows removing the gear (once its out and on the bench) with the special puller and putting it back on with the pusher after bottoming out the bearing in the housing. I know A few of you have done the job and would like to here from you if you've done it without removing the gear.

Maybe without removing the gear you might not get the bearing bottomed out? or will the bearing plate do that after its screwed down?

Guessing I could rig up a bearing driver made outta pvc and pull the gear the way the video shows and then rig up a strap and use the hole in the shaft to push the gear on but would rather not unless you need to. The video doesn't show him putting the gear back on and since its a press fit not sure on that and am thinking you would need to press it back on.

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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  • Randombeat
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03 May 2015 14:46 #670519 by Randombeat
Replied by Randombeat on topic Starter clutch failing on my KZ750 H LTD

KZB2 650 wrote: How I missed that I don't know and its been on there for a year..... maybe we don't need the gear puller and pusher after all Randombeat.......


I'm with ya brother, wish he showed reinstallation...

I'm pretty surer the trick with the bolts will work for pulling it, not so sure about putting it back on, maybe a rubber mallet/brass hammer, or wood and hammer? I've heard several folks mention the PVC deal....

The PDF ed sent me doesn't mention how to put pull/replace the gear, and does say you don't absolutely have to remove it... Anyone who needs the PDF about replacing the starter clutch, pm me your email and I'll send it o ya...

1980 KZ750H LTD-- pods-- vance & hines 4-1 --speedo/tach/blinker/switch deletes -- brat style

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04 May 2015 21:20 #670718 by Twilightoptics
Replied by Twilightoptics on topic Starter clutch failing on my KZ750 H LTD
Anyone have a good lead on the sprocket? Just got my starter clutch out tonight, nothing obviously damaged. Sprocket a little warn. I've got the springs pack ready to go in but reading this and seeing Ed's photo makes me want a sprocket. Only took a few hours to get it out, and that's pulling both wheels (they're getting new rubber.) I've gotten a lot of parts from Partzilla but they say the sprocket is obsolete. Prefer to skip the eBay if I can.

PS - use air tools!
Thanks,
-Paul

1977 KZ650-B1

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05 May 2015 07:29 #670745 by KZB2 650
Replied by KZB2 650 on topic Starter clutch failing on my KZ750 H LTD
Check out the thread "Starter won't grab" on page 4 of the engine section for more info on the gear ......

And did you remove the gear in the question I have above before pulling the shaft ?

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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  • KZQ
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  • Walking Behind the Corn May Not Be All That!
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05 May 2015 10:11 #670763 by KZQ
KZB2 650 asked me by PM:
"Was wondering If you could answer the question I have about removing the gear on the starter clutch shaft before I tear into it ...... Its near the end of the thread "Starter clutch failing on my KZ750" on the first page of the engine section. Thanks"
Yes I removed the gear. I remember thinking during reassembly that I hadn't needed to as the bearing didn't need much in the way of persuasion to fit into place. But I was being cautious not wanting to side load the bearing by driving on the end of the shaft.
I did the job with the engine still in the bike. IIRC, it wasn't much fun working up side down.
Good Luck
Bill

www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
Projects:
1985 ZN1300
The following user(s) said Thank You: KZB2 650

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05 May 2015 12:15 #670774 by KZB2 650
Replied by KZB2 650 on topic Starter clutch failing on my KZ750 H LTD
Thanks KZCSI and if we deside to remove this gear how did you put it back on ...... with a socket and a bolt in the threaded center of the shaft ..... or maybe a strap and the bolt in the shaft pushing it back on ...... don't think it would be tapped back on and I don't want to buy a gear pusher ...... thanks again for the help its for several of us.

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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  • Randombeat
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05 May 2015 15:54 #670791 by Randombeat
Replied by Randombeat on topic Starter clutch failing on my KZ750 H LTD

Twilightoptics wrote: Anyone have a good lead on the sprocket? Just got my starter clutch out tonight, nothing obviously damaged. Sprocket a little warn. I've got the springs pack ready to go in but reading this and seeing Ed's photo makes me want a sprocket. Only took a few hours to get it out, and that's pulling both wheels (they're getting new rubber.) I've gotten a lot of parts from Partzilla but they say the sprocket is obsolete. Prefer to skip the eBay if I can.

PS - use air tools!
Thanks,
-Paul


I got mine from cheapcycleparts.com .. Believe a few others have lately also... Hope that helps

1980 KZ750H LTD-- pods-- vance & hines 4-1 --speedo/tach/blinker/switch deletes -- brat style

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