SOHC.co.uk Forums > CB750

Ignition timing question

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Trigger:
Cb750K0 to K6 carbs are so easy to get out and work on  ;)

Bryanj:
The effort to set points gap at 14 thou and get the timing spot on the F is worth it but do keep rechecking it as moving the plate alters the gap and altering the gap moves the timing so takes a lot of care and time as a novice but well worth it

Craizeehair:
Thanks for the advice, I have some free time today so I will spend a bit of time checking the points and timing again.

I was also going to check the valve clearances again and maybe see if I can get my hands on a compression tester.

Looking through the book, the engine tune up lists the tasks in order, would this be the best and recommended order to carry out these checks…

Ignition timing and points gap, tappet clearance then can chain adjustment?

The air filter is new and the carbs are going to wait until the weather turns.

Oddjob:
I would move check and adjust ignition timing down the list myself. Ok if you're doing a static test but if using a strobe or a dwell meter that involves running the engine and that means adjusting the tappets is affected as they're best done stone cold.

Firs thing we did was drop the oil and filter and that way it was draining as you worked on the rest.

Craizeehair:
Thanks, only doing static timing so I guess that’s should be ok as listed.

Much appreciated.

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