Got to ride my new 07 WR450f last weekend out at jawbone canyon & dove springs. Coming from an 01 wr250f, this bike is an absolute monster- I hit 78mph on a fire road & the bike was still pulling hard . I also had to upshift(!!!) during a hill climb at dove springs.
Two minor issues I had though-
1. The clutch. The clutch was harder to pull vs my old bike and my left hand got tired after a day of riding. Anything I can do to soften that up or should I start getting my hand stronger? For what it's worth, it has an ASV lever.
2. Had some issues getting the bike started in the morning. I'd pull out the choke, turn on the ignition, and the bike would start first kick (battery's dead ). Gave it a few minutes to warm up, then pushed in the choke and as soon as I revved the throttle, the bike would die. It took 10 minutes of waiting/kicking to get it started again. This happened both mornings. To me, it felt like the engine was spinning enough to run, but no spark. Every other time I started the bike, it would start first kick. Once the bike was warmed up, it ran great - no bogs, flat spots, etc. Maybe a slight hanging idle if I'd been sitting still for too long. AP was snappy and responsive as well.
Before the weekend I threw in a new iridium plug (CR8EIX) and the JD jet kit & fuel screw (red-4 needle, 165 main, 48 pilot, ap thick o-ring, fuel screw 2 turns out). What should I be looking at? Could it be the dead battery?