SOHC.co.uk Forums > CB500/550

CB550k1 US Import - UK registration

<< < (72/115) > >>

Bryanj:
Looks it to me

juitz:
Hi all,

Need a bit of guidance/tips as I'm struggling to do the static points adjustment.

- I've checked the spark advance mechncam position, and the dot on the cam is on the same side as the TEC marking and hole (which i think is correct).
- I've installed the spark advance mechanism and points assembly, rotated the crank until the points are open at their widest, adjusted the airgap to 0.350mm using shims.
- Using multimeter continuity I am trying to get the points to open at the cylinder1-4 F marking, but the points open around the two markings that show || 1.4 before the F and T marks.
- Tried to rotate the entire ignition assembly but this doesn't have enough adjustment.
- I've tried both original and aftermarket points. Crank is rotated clockwise.


What am I missing or doing wrong here?

Thanks!

Oddjob:
Explain the shims comment as there are no shims for the points? You just loosen the screw holding the points to the plate and use a screwdriver to alter the gap, around 14-16 thou iirc. I always use a dwell meter to set the point gap as you can do it whilst the engines running. I’d do the gap as above for the initial setting though. Try lowering the gap a little, seem to recall Nigel recommending 12 thou. Don’t do metric sorry, old school.

juitz:

--- Quote from: Oddjob on January 14, 2023, 01:55:18 PM ---Explain the shims comment as there are no shims for the points? You just loosen the screw holding the points to the plate and use a screwdriver to alter the gap, around 14-16 thou iirc. I always use a dwell meter to set the point gap as you can do it whilst the engines running. I’d do the gap as above for the initial setting though. Try lowering the gap a little, seem to recall Nigel recommending 12 thou. Don’t do metric sorry, old school.

--- End quote ---

Sorry - meant feeler gauge instead of shims!

I've adjusted the airgap by undoing the screw holding the points to the main plate. Tighten up then rotate crank unti 1-4 F mark.

Tried with smaller airgap - 0.3mm (12 thou) instead of the 0.35mm (14 thou). But still no luck. Wondering if the cam is not right.
Photo is where points open.

Oddjob:
Check the advance/retard unit, can you see a number next to where the spring mounts to the left of the 1-4 marking? Just turn the crank clockwise a little and if it’s there you should spot it. There are 2 types of advance/retard mechanisms and on one the dot goes on the same side as the Tec marking but on the other it’s on the opposite side.

Navigation

[0] Message Index

[#] Next page

[*] Previous page