Author Topic: 65 mm 836cc kit  (Read 2027 times)

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Offline Dion

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65 mm 836cc kit
« on: January 02, 2016, 12:18:49 AM »
Hi guys,  I bought via the net a 65 mm piston kit for my sohc . The box has no manufacturers details on it just the serial number Cicb750kps.  I will apreciate it i f anyone an help with a few questions.
1) what clearance do I bore the barrel to?
2) I'm having a head gasket made  by a local company. What diameter hole do we make do the piston hole on the gasket ?
       Is it 65mm plus the piston to barrel gap asked for in question 1.?
3) what thickness should the gasket be?
Really appreciate the help guys.


Offline BPellerine

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Re: 65 mm 836cc kit
« Reply #1 on: January 02, 2016, 04:17:18 PM »
a pic would help,are they cast or forged?,you can buy a gasket for 836 from several places,takes the guess work out.bill
1978 CB 750K ard and webers
another anfob

Offline Dion

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Re: 65 mm 836cc kit
« Reply #2 on: January 04, 2016, 12:55:51 AM »
Hi. They have been cast. Thanks

Offline johno

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Re: 65 mm 836cc kit
« Reply #3 on: January 04, 2016, 02:36:32 AM »
Dion,
Try page 11,     836 big bore kit thread , it has all the good oil.
GRASSHOPPER SOHC HONDAS ARE THE MEANING OF LIFE.

Offline Garage_guy_chris

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Re: 65 mm 836cc kit
« Reply #4 on: January 04, 2016, 12:12:54 PM »
Pretty sure they are the cruzin image 836cc

http://www.ebay.com/itm/69-77-HONDA-CB750K-836cc-65mm-BIGBORE-PISTONS-KIT-W-HEAD-GASKET-CI-CB750KBB-/141768773488?hash=item210213cf70:m:m3fMjeJtbAVbPobwoun77TA

http://www.ebay.com/itm/69-76-HONDA-CB750K-0-5mm-OVERSIZE-PISTONS-SET-4-PISTONS-INCLUDE-CI-CB750KPS-1-/131588210647?hash=item1ea344bfd7:g:7ggAAOSwyQtV3EE6

This is showing that the 0.5mm and 1.0mm overbore kits have the "KPS" so i would measure and make sure you have a 65mm kit

If infact you have the Cruzin image kit here is 16 pages of reading regarding them, they are a pretty decent kit.

http://forums.sohc4.net/index.php/topic,89779.0.html
1971 Cb450 Cafe  (on the road)
1974 Cb750 Restomod (on the road)

Offline Dion

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Re: 65 mm 836cc kit
« Reply #5 on: January 05, 2016, 01:01:45 AM »
u a star - thanks bud