Author Topic: 750 K0 Under Cam O-rings missing in Cyclex kit?  (Read 936 times)

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Swoop

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750 K0 Under Cam O-rings missing in Cyclex kit?
« on: December 07, 2015, 01:29:45 PM »
Hi,
Just wondered if anyone else had this problem? They have the larger ones for the orifice style, but they are too big for the K0/sandcast style.
I have some regular princess auto (harbour freight) o-rings that I assume are butyl....probably not high enough temperature range....what should they be made from?

Thanks for your help.
Steve

Offline BPellerine

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Re: 750 K0 Under Cam O-rings missing in Cyclex kit?
« Reply #1 on: December 07, 2015, 01:46:36 PM »
hey swoop,my veserah kit only had the later o rings too but the set says 69 to 78 ,in hondamans book he says Viton or buna? o rings are fine.billp
1978 CB 750K ard and webers
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Offline flybox1

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Re: 750 K0 Under Cam O-rings missing in Cyclex kit?
« Reply #2 on: December 07, 2015, 02:23:40 PM »
OEM HONDA or VITON only for that application.  All else (buna-n/nitrile, etc.) do not have the heat tolerance.
CMSNL should list the dimensions.  try theoringstore.com for metric sizes.
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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Swoop

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Re: 750 K0 Under Cam O-rings missing in Cyclex kit?
« Reply #3 on: December 07, 2015, 02:35:51 PM »
Thanks guys.
I don't want to take the chance on cheap yo-rings....just wasn't sure what to ask for...I was thinking EPDM.

Steve