If you are 5 ft tall, weigh 120lbs and cant jump you will probably have trouble starting the WR's.
ok, I'm brand frigging new to dirt bikes (haven't even ridden around the block on mine yet) - 95K mi on street bikes with magic buttons. But if I can learn in an hour how to kick my WR400 (no cam) in 20F weather, what's the problem exactly? Granted I ordered the auto-decomp cam before I figured out my troubles were almost entirely because the gas tank needed to be in reserve. I may still install said CAM since I haven't had the pleasure of trying to kick a hot WR but now that I've figured the method out and she starts within 6 kicks at most (I empty kick a couple just to prime the oil pump) I am having difficulty with the "this bike is hard to start" line of thought.
What am I missing?
I think 98% of the problems people have starting them are bad tuneup and incorrect technique. It seems a lot of people have a bad tuneup or bad technique, so they go buy a JD kit and/or an auto decomp cam. Suddenly they can start their bike easily. If the tuneup is off (pilot/float/idle screw) it'll be a bitch to start, regardless of what cam and needle you have in your bike.
Talking of tuneups, I bet thats what I'm about to get for my comments.
Just my 2 cents worth.