SOHC.co.uk Forums > CB500/550

CB550F ELECTRONIC IGNITION

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Bryanj:
In the original  Honda handbook it said something like. " Do not run the engine out of the top of the red band"

Oddjob:
When racing I used to run it well through the red, never missed a beat. I wouldn't advise it for regular everyday use but it's well possible to do it.

Nurse Julie:

--- Quote from: Oddjob on January 02, 2023, 02:05:20 PM ---When racing I used to run it well through the red, never missed a beat. I wouldn't advise it for regular everyday use but it's well possible to do it.

--- End quote ---
That's why I only go into the red and not out the other side, because Honda says it's OK for me to do this 😊😊😊

McCabe-Thiele (Ted):

--- Quote from: Oddjob on January 02, 2023, 02:21:12 AM ---I’m betting you just turned them round?

They do fit, must do as I’ve fitted them backwards but I didn’t just turn them, leave the mounting brackets in the same place, dismount the coils only by removing the 2 screws and turn them round, leaving 1 and 4 still on the left. Try that.

--- End quote ---

I tried that but no joy.

Oddjob:
Shot of my 500 after over 40 years of storage, you can clearly see the coils mounted backwards Ted, you're clearly doing something wrong if you can't get them to mount like that.



The advantages are that the coil leads face backwards, this avoids any water being driven into the coils (where the leads exit) by wind force, it looks tidier, it avoids the droop over the exhausts so no chance of them melting on them, they can be clamped to the top of the rocker box so less movement due to vibration and wind. Before I did this I had shorts from the leads whenever it rained hard, after nothing.

I'm not 100% sure the coils aren't mounted with 1-4 on the right instead of the left, might have done that due to lead lengths.

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