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CB500/550 / Still Running like a dog!!!
« on: August 05, 2019, 11:45:31 AM »
OK now at wits end completely. New head gasket fitted (OEM), carbs fully overhauled and check of all pilot circuits etc and still running like a dog.
Checked for air leaks around carb rubbers etc
Symptoms are it starts up fine and sounds fine but as engine gets warm I get a afterfire in exhausts 1 and 2 and it will just not pull at all.
Am beginning to wonder if I have an ignition problem. The bike was fitted with a full Boyer kit including micro coils 18 months ago.
Anyway here is my question.
As I understand it the BOyer system fires all four cylinders so if this is correct I should be able to swap plug leads 1 and 2 over to 3 and 4 and vice versa. If I then get the problem on cylinders 3 and 4 instead of 1 and 2 it points to either a plug cap or lead or other ignition issue.
A further question is if I can just swap over the yellow and blue wires on the Boyer stator plate and will this have the same effect as swapping over the plug leads
Checked for air leaks around carb rubbers etc
Symptoms are it starts up fine and sounds fine but as engine gets warm I get a afterfire in exhausts 1 and 2 and it will just not pull at all.
Am beginning to wonder if I have an ignition problem. The bike was fitted with a full Boyer kit including micro coils 18 months ago.
Anyway here is my question.
As I understand it the BOyer system fires all four cylinders so if this is correct I should be able to swap plug leads 1 and 2 over to 3 and 4 and vice versa. If I then get the problem on cylinders 3 and 4 instead of 1 and 2 it points to either a plug cap or lead or other ignition issue.
A further question is if I can just swap over the yellow and blue wires on the Boyer stator plate and will this have the same effect as swapping over the plug leads