Starter clutch assessment

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22 Apr 2021 19:39 #847255 by katit
Starter clutch assessment was created by katit
Guys, need help. Here is what I have, see pics. Rollers in great shape. No really visible lines and doesn't feel by finger. Gear does have ridges and I can feel with a finger. Motorcycle has 26k on it. Before I took it apart starter was running good. Should this gear be replaced? I read rollers wear out, but maybe they were replaced already?
Also, this gear has some wobble in it. Normal? Should needle bearing be replaced?

 

78 KZ650B2A - resto in progress
www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s
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    22 Apr 2021 20:14 #847259 by Nessism
    Replied by Nessism on topic Starter clutch assessment
    I'd install new rollers and springs just because, and let the gear ride until you get slipping.  

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    22 Apr 2021 20:19 #847261 by katit
    Replied by katit on topic Starter clutch assessment
    Is gear replaceable with engine assembled? 

    78 KZ650B2A - resto in progress
    www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
    Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s

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    23 Apr 2021 05:41 #847274 by KZB2 650
    Replied by KZB2 650 on topic Starter clutch assessment
    Mine was good before I did the rebuild but started slipping the next year. You would need to remove the pan and tear into it that way if you decide to wait and it gives you trouble. I removed the motor again to do it but the bike can be hung by the rafters or laying it on its side to get to it I've seen. New rollers and springs for sure.......... I replaced the housing and the gear too but just the gear would a probably done it. I replaced the bearing too and it stopped most of the wobble but still had a tiny bit. Was only 10 bucks then so I grabbed it.

    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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    23 Apr 2021 07:45 #847284 by katit
    Replied by katit on topic Starter clutch assessment
    I assume rollers sold as kit with springs and pushers, any decent brand/source?

    78 KZ650B2A - resto in progress
    www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
    Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s

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    23 Apr 2021 08:17 #847288 by TexasKZ
    Replied by TexasKZ on topic Starter clutch assessment
    New ones from Kawasaki may still be available. I would check Ron Ayers and Partzilla.

    It would help the rest of us to give better advice if you would put the year and exact model of your motorcycle in the signature line. That way, it will show up in every post you make automatically, and old duffers like me would not have to memorize that info.

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

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    23 Apr 2021 08:20 - 23 Apr 2021 08:21 #847289 by katit
    Replied by katit on topic Starter clutch assessment

    New ones from Kawasaki may still be available. I would check Ron Ayers and Partzilla.

    It would help the rest of us to give better advice if you would put the year and exact model of your motorcycle in the signature line. That way, it will show up in every post you make automatically, and old duffers like me would not have to memorize that info.
    Done. Added to sig :)

    This is what I found so far, but it's universal kit, not Kawasaki
    www.z1enterprises.com/starter-clutch-kit...1300-zn700-1300.html
     

    78 KZ650B2A - resto in progress
    www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
    Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s
    Last edit: 23 Apr 2021 08:21 by katit.
    The following user(s) said Thank You: TexasKZ

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    23 Apr 2021 08:35 - 23 Apr 2021 08:36 #847291 by TexasKZ
    Replied by TexasKZ on topic Starter clutch assessment
    That assembly was used on a lot of Kawasaki and Suzuki models.

    New from Kawasaki

    www.partzilla.com/catalog/kawasaki/motor...shaft-starter-clutch


    Also available from Ron Ayers, but you will have to look it up under one of the newer models.

    1982 KZ1000 LTD parts donor
    1981 KZ1000 LTD awaiting resurrection
    2000 ZRX1100 not ridden enough
    Last edit: 23 Apr 2021 08:36 by TexasKZ.

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    23 Apr 2021 08:45 #847293 by katit
    Replied by katit on topic Starter clutch assessment
    What bothers me that visually gear race has more wear than actual clutch mechanism 

    78 KZ650B2A - resto in progress
    www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
    Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s

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    24 Apr 2021 05:44 #847353 by Injected
    Replied by Injected on topic Starter clutch assessment
    This picture says it all...
    Attachments:
    The following user(s) said Thank You: KZB2 650

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    24 Apr 2021 07:20 - 24 Apr 2021 07:21 #847358 by KZB2 650
    Replied by KZB2 650 on topic Starter clutch assessment

    What bothers me that visually gear race has more wear than actual clutch mechanism 

    You talking about #9 (the one way clutch assembly).......... if so mine was worn pretty good and after tearing it apart again I wanted it to be the last time so I replaced that along with the gear. It came assembled with rollers, springs and pins so don't buy both before you check....... Good job on the gear pic Injected too..... Ed usually puts one up and was waiting for him........

     

    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.
    Last edit: 24 Apr 2021 07:21 by KZB2 650.

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