Next time you are rotating the crankshaft, don't remove the spark plugs all the way out, there's no need just loosen them up well.... I tried this the last time I was adjusting the valves,,, seems to work well....
Motorcycle: 2006 Kawasaki Concours - sold - :-) 2000 GL1500SE - sold :-( 2004 Kawasaki KLR 650 Solex 5000 - gave to son 1980 Honda CBX - sold :-( 1981 Honda CBX - sold :-(
Yep, that's the way I've always done it unless I need to replace the plugs.
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "
There's usually at least a little dirt or debris settled around the plug body. Loosening them enough to bleed the air but not removing them would prevent that dirt from finding it's way into the cylinders.
OMG you guys wouldn't believe the crap that settled down in my Kawasaki voyagers engine...My goodness it took me 20 minute each cylinder to clean out around the plugs then I used a air compress and hose and a shop vac to get it clean just so I can remove the plugs,, Here ya go...See what I mean