ive owned a brand new wr450f 2012 for 3 months now and when i first got the bike it was a nightmare to start but my dealer assured me thast it would be ok after a 1000 + kms
and he was very right she start first time the odd time it takes 2-3 goes .
only thing i can say is that when you turn the bike on dont push the start button straight away . wait for the little electrical noise to stop then try and if still not going then wait for noise to stop and try again . even with my bike running right if i was to go and try to start it without letting it settle then it would NEVER START .
btw my current setup is standard as the dealer gave it to me . she came with throttle stop removed , mappable ecu , pea shooter removed and wider one fitter this is how we get our bikes brand new from the dealer here in new Zealand
That's pretty much how I try to start every time. The cold start isn't really an issue. My bike starts usually on the 2nd or 3rd try. I don't have any issue with that. The problem is after the bike warms up or gets hot, it becomes a bear to start.