TOPIC:

Hello,
I have not posted much but I have a 1978 kz650b. I have also been having some problems with spark plugs. I have had the bike for about a year now and about once every two weeks I have to replace a spark plug and it runs just fine. it happens on one cylinder at a time, and different cylinders every time. Have anyone had this problem before? Any ideas?


Louis

So the dead cylinder is changing?

If you can, give us a picture of the plugs that are fouling. I am wondering if it is due to weak power, or rich mixture.

Perhaps the plugs can shed some light on what is going on.

How is the rest of the motor?
Has it been run a lot? Just summers?
Has this been a consistent thing, or has it been getting worse lately?
What have you done with the bike since you have had it?
Have you adjusted anything?
Have you changed plug power or brand?

I need more hints.

Q