I was just in this boat as I was looking at both bikes to buy. The EX500 is much heavier and way older technology. EX400 is better in every way except the price. I got my 500 for $1300. The 400 still cost well over 3x that price. For my money the EX500 was the better choice for my needs (30 mile commute and canyon carving on the weekends).
When the 400 comes down in price I’ll probably look at buying one again.
Up coming sub freezing cold start video , when weather permits. We'll see if the EX can beat that time. And just for fun we'll use one with over 100k miles on the engine (and carbs). :wink2:so so many times I've rolled some carbed bike back into garage after wasting over 30-minutes trying to start it.
OK, Danno. Now that you've spilled the beans you've got to give us a blow by blow account on converting a carbed bike to EFI. The whole thing, throttle bodies, pump, pressure regulator, plumbing, harness, programming the Microsquirt (Megasquirt??) Maybe this winter??.....we're waiting....Slowly but surely I've been converting all my carbed bikes to EFI wit Microsquirt. Immediately gives bonus of +5-10% more power and better low-end tractability too!