OK, so to the ones that do as the manual states.............. ignore this thread.......
Ive been riding motorcycles since I was 12 (now 45) and been doing mechanics about as long, so I do know quite a bit...
So, back to the topic, 41 lbs in tires, way way too high! when I first bought my 08 new, I test rode it and asked the sales rep whats with the 41 psi deal, he said thats what Kawasaki states and we follow their rules, I then talked to the mechanics in the back (of which I knew most of them) they laughed and knew my line of thought on this, they have to put 41 in there because its in the rule book but even they stated that its too high.
I have brought this PSI deal up with a few knowledgable folk who are on the same page.........
So, here's what I have found to be the best (for me) I ride my 09 hard at times and do take the chicken strips away on the rear (pilot power 3's) OK, at 41 its a hard ride and tends to skip a little on hard curves (Dragon tail/Deals Gap) now I have tried different pressures and finally come up with the best pressures that suits me (which may not for you)
Ok, Front 36 PSI and Rear 38 PSI, this makes my riding skills much better and much smoother ride.
Even if you dont ride it hard, 36F and 38R is so much better and smoother, and NO those tire pressures are NOT too low, give it a try, whats the worst, you dont like it!!!! then put it back to 41!
At those pressures on my 08 and 09 never had a slide out (hell, I dont want to drop my $14K investment)
Anyway, have a good day guys....