Why do our bikes foul sparkplugs so frequent?
Our local dealer states they sold 376 of our NGK plugs last year. And already 43 this january.
I got to thinking and all the Vulcan 900's in my sig needed plugs, and the one with 1500 miles fouled out as a result of us starting in "dewpoint" conditions.
When looking at these NGK plugs, they appear to get fouled way up inside with the only solution becoming to cook them on a gas stove for 20 minutes, and regap to 0.030 instead of factory 0.032 - 0.036.
Any idea why these eat up plugs so much? My stratoliner has original plugs with 9k on them.
-2006 Yamaha Stratoliner XV1900, 13k miles.
-2006 Kawasaki Vulcan 900, 14k miles, Blue Collar Bobber Build.
-1976 Kawasaki KT250 trials - all original.
-1975 Kawasaki KT250 trials - beater.
-1975 2x Suzuki RL250 trials bikes.