SOHC.co.uk Forums > CB350/400
A tappet mystery
K2-K6:
Virtually all 4 cylinders are the same "T" for top on timing marks (TDC of 1&4) and both valves will be up on one of the end cylinders, with two of the four valves (one exhaust and one inlet) of the middle two cylinders (2&3) the same. Adjust these four.
Rotate 360 degrees and the opposite end cylinder will have valves both up, plus the two valves you didn't do on 2&3. Adjust these four.
Athame57:
--- Quote from: Macabethiele (Ted) on September 05, 2021, 05:12:54 PM ---I suspect that on the internet they are standing on the left of the bike where number 1 cylinder is and clockwise from the points end is counter clockwise looking at the alternator end if you get my meaning?
--- End quote ---
I do, but no. I've asked on Quora. com and most agree it should be counter-clockwise. The video I watched was with the mechanic on the right (points end) but choosing to start with that side too: https://www.youtube.com/watch?v=ygfESBBUjAA&list=WL&index=22
TrickyMicky:
We all seem to have our own methods for this exercise.
For me, it's bike on ramp, being nice to my backbone!
Remove tank
Remove tappet covers.
Remove spark plugs.
Engage 6th gear, and use the rear wheel to turn engine over.
Line up "T" mark for Nos. 1 and 4.
Check rocker arms for these cylinders, if you can wiggle both rocker arms, they are the ones to adust if necessary.
If you cannot move them, then adjust the ones for the other cylinder.
Repeat the process for cylinders 2 and 3.
Having the bike in gear and at this height also makes it easier to check ignition timing.
Have fun!
Athame57:
--- Quote from: TrickyMicky on September 05, 2021, 05:57:44 PM --- Have fun!
--- End quote ---
You think I'M a gremlin too huh? :o
Bryanj:
You definately do not turn it counter clockwise at the points end as if the tensioner is too loose turning backwards has been know to jump the camchain a tooth and yes i have seen that done.
Forget the internet, whilst there can be mistakes in the HONDA manual they are rare and usually a bad translation.
Haynes, Clymer etc are very good for lighting the barbie
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