uknowme2goog
XS650,1980, Bobber
I have 1980 xs and the spark plugs only last about 200 miles before there are shot. I am a using the factory plug NGK BPR7ES with a gap of 027-031. When I install a new set of plugs the bike turns over on the second or third kick and after a fewe rides it just gets worse...i have to kick it 20 times before it turns over...it has become to much of a work out...When i remove the plugs the normally white insulator is black and there is a little wet oil on the elextrode, other than that the plug looks finne.....sometimes if i clean the plug i can get a few more rides... What do think is the cause...