Torque for Clutch Cover - KZ550 shaft/F1 Spectre

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03 Apr 2017 17:04 #758411 by Hexadecimus
How tight should the clutch cover bolts be? I can't find torque specs in any of the PDF manuals I found for this bike.

Thanks

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03 Apr 2017 17:55 - 03 Apr 2017 17:58 #758415 by Nessism
Snug. If you insist on a number use the basic torque chart based on bolt size that's in the service manual. Just know that a little loose won't hurt anything and it avoids stripped threads.

EDIT: the chart says 52-78 in-lbs for a 6mm screw. I'd go to the lower end of that range.
Last edit: 03 Apr 2017 17:58 by Nessism.
The following user(s) said Thank You: loudhvx, Hexadecimus

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04 Apr 2017 06:56 #758445 by loudhvx
They didn't usually give torque specs for machine screws (JIS cross-head). I guess it was expected you would be using a screwdriver and would just use reasonable force.

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04 Apr 2017 08:08 #758457 by Hexadecimus
Replied by Hexadecimus on topic Torque for Clutch Cover - KZ550 shaft/F1 Spectre
Thanks for the generic specs. Should be enough. And they're 5mm allen heads btw.

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04 Apr 2017 08:37 #758459 by KZB2 650
Was wondering that a while back (as I have allens too) and went with 60 inch lbs that's in the manual. Did that for the carb holder bolts and just go good and snug on the side covers. Can see where you could get into trouble going too tight with the allens but I've found out the 60 inch lb reading is about what I stop at by hand and have never had a problem.

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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09 Mar 2018 05:50 - 09 Mar 2018 05:50 #779965 by JMKZHI

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Thanks for the generic specs. Should be enough. And they're 5mm allen heads btw.
...


The clutch cover bolts should be 6mm. The parts diagrams usually have the bolt sizes.
Last edit: 09 Mar 2018 05:50 by JMKZHI.

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15 Mar 2018 08:42 #780301 by loudhvx
Typical 6mm allen bolts will require a 5mm allen wrench.

(Like how typical 1/4" bolts will require a 7/16" wrench.)

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16 Mar 2018 07:12 - 18 Mar 2018 05:38 #780337 by JMKZHI
Yes, but he didn't specify if he meant the bolt size or the wrench size. In this case it probably won't matter, but if a guy could get into trouble when installing a something like a valve cover if he doesn't know the difference between the two. :)
Last edit: 18 Mar 2018 05:38 by JMKZHI.

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