A Guy in Arkansas has 213,000+ miles on his 1-owner 2008 Concours; first valve adj at 64k miles; original plugs at 104,000 miles. He rides it like he stole it, too.
Cliff's own words on his valve adjustments (posted 2019)..
"1st was at 64,000 & 1/2 were tight, second was at 122,000 & all were tight, 2 with almost no clearance. Third time 195,000 & all were good."
Another comment (2019, his Bike 213,000 mi)
" few valve adjustments, few batteries & just basic maintenance. No failures or breakdowns as of yet. Replaced wheel bearings & steering bearing as a preventaive once. Couple months ago replaced throttle cables as a preventative. Have a fuel pump to install, also as cheap insurance just haven't got to it yet.
Cam sensor o ring & valve cover gasket had started seeping somewhere in the high 100's. Front disc were replaced somewhere around 130,000 - 140,000. Worn past min. thickness.
Mostly just criss cross the country!"
Long Live Kawasaki's toughness