84 CB700CS compression
02-08-2021, 06:18 AM
#1
Junior Member
Squid
Thread Starter
Join Date: Feb 2021
Posts: 1
84 CB700CS compression
I just purchased an 84 CB700CS with 24,00 miles in good condition overall and found 2 cylinders with lower compression.
4-85
3-130
2-125
1-30
I have not gone further with the diagnosis yet but hoping for information on common or possible problems for these bikes.
Thanks, Joel
4-85
3-130
2-125
1-30
I have not gone further with the diagnosis yet but hoping for information on common or possible problems for these bikes.
Thanks, Joel
02-08-2021, 11:35 AM
#2
VTR virgin
Superstock
Join Date: Mar 2015
Location: Auckland, New Zealand
Posts: 446
IIRC (and I am getting old) the CB700S engine uses hydraulic valve lash adjusters (same as the CBX750F that I owned back in the day). May be an issue with an adjuster that is keeping a valve part open?
02-09-2021, 04:13 PM
#3
Senior Member
SuperBike
Join Date: Sep 2010
Location: Bisbee, AZ
Posts: 1,873
Good call on a stuck lifter.
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