Join Date: May 2004
Location: Newport Beach, CA
I had a gen 1 with 70,000 in 4 years, and had the original clutch.....I ran track days and ran the shit out of it...down one in the front too...ran like a fine swiss watch.
I have a gen 4 with 45,000 miles and had the valves checked at 20,000 and 38,000 miles - all in spec each time.
Same thing....run the crap out of it...mechanic said he never saw a cleaner inside of a motor. Reflash, removed secondaries, changed the gearing, Bazzaz fuel ..185 RWHP on Attack's dyno...bike definitely holds up under hard usage...I run a slow A fast B group.