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Author Topic: piston clearance for a 836 kit rebore  (Read 1572 times)

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Offline k2 sohc

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piston clearance for a 836 kit rebore
« on: August 12, 2016, 02:34:02 AM »
I'm a proud owner of a CB 750 K2 since new. I'm having my barrels bored out to fit an 836 kit. ie 65mm pistons. The machinist want to no what piston clearance is needed. ie 1 thou, 1.5 thou or 2 thou. So all you experts out there post your replies. It could be an interesting topic

thanks Alex
from Down Under :'( :'( :'( 8)
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750 K2 had since new
BMW R90/6 outfit had since new
Triumph T140v Bonneville since new
BSA A10 Goldflash

Offline SBR-CB400F

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Re: piston clearance for a 836 kit rebore
« Reply #1 on: August 12, 2016, 02:59:04 AM »
Hi Alex,
Try asking this question in the High performance section, you should get a few more replies there  ;)

Cheers
Adam
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1975 cb400f, 14.435 @ 89.01MPH at Willowbank Street Series 28 March 2015
1976 cb400f Nostalgia Drag Bike.
1.871 @ the 60'
8.632 @ 78.44 mph over the 1/8.
13.822 @ 91.91 mph over the 1/4
1977 cb750f2 Resto Project
1973 cb750k4 Chopper project
1971 cb750k1 Restoration Project
1975 cb750f1 Drag bike
1.549 @ 60'
4.425 @ 330'
6.895 @ 98.05MPH  1/8 mile
10.993 @ 116.76MPH  1/4 mile

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: piston clearance for a 836 kit rebore
« Reply #2 on: August 12, 2016, 09:09:10 AM »
Shouldn't be an issue. What's he up to that he needs to know. No problem with a standard over bore.
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)
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