Honda-SOHC

SOHC.co.uk Forums => CB650 => Topic started by: RickyC83 on December 14, 2013, 05:49:23 PM

Title: Head bolt torque settings?
Post by: RickyC83 on December 14, 2013, 05:49:23 PM

Any one know the torque settings for my 1980 cb650z head bolts?
The manual says 12mm bolts at 8-10 kgf m. I tryed to convert that to Newton meters and it came out at 88. Pretty sure that's not right.

Title: Re: Head bolt torque settings?
Post by: RickyC83 on December 14, 2013, 06:52:01 PM

Ok so I realise that there not 12mm bolts that's just the socket size. Ther m8. Torque setting in Newton meters is 28nm.

Title: Re: Head bolt torque settings?
Post by: Bryanj on December 14, 2013, 07:26:49 PM

Sorry don't work in this new fangled metric, whats that in good old Ft lbs?

Title: Re: Head bolt torque settings?
Post by: fisjon on January 10, 2014, 08:26:24 PM

The 8mm bolts are 24-30N.m / 17-22 ft-lb
The 6mm bolts are 10-14N.m / 7-10 ft-lb
tighten the bolts in 2-3 steps in the following number sequence:
with exhaust facing you numbers are from left to right inlet side
12 8 4 2 6 10
with exhaust facing you numbers are from left to right exhaust side
11 7 1 3 5 9
Just start at no 1 and follow through.........................