Hi all, I have a really annoying (and expensive) problem,
My bike keeps killing plugs, If i put a new plug in it will start first kick and run perfectly
all day with no problems at all but as soon as i go to start it the following day it will start up,
idle then as i put revs on it will bork then die (killing plug).
The spark plugs are black when i take them out,
Could this be caused by the air mix screw on the carb running too rich??
Any help will be much appreciated Thanks