My friend has a 1979 Kawasaki KH100EL single cafe bike and it runs good cold but when it warms up it fouls its plug right quick.
He has put like 10 miles on the bike and 4 or 5 spark plugs.
He took the bike to a reputable shop and got the call today that they have no idea whats wrong with it and that he should take it to Kawasaki.
So if anyone knows a place thats good with older bikes i would appreciate it. Thanks.