Yz426f hot starting problem

So I recently bought an '02 yz426f, and I've been able to cold start the bike no problem. But once the bike heats up a little (gets pretty hot pretty fast), and I turn it off, the bike refuses to start until I let it cool off enough to choke it. The hot start seems to do nothing. Any suggestions?

Do you still have a decompression lever?  It seems to work for me to kick a few times with the decomp lever pulled then kick it over (no throttle).  Some suggest next going to the hot start button.  Also, if I have my idle screw turned up so it idles fast, it starts much easier.  Once I'm going I usually turn the idle down a little so I don't run off the track.  Mine is a 01 yz426 w/hot cam exh w/autodecomp - still have lever.  Lots of folks say just get a rekluse then you don't usually have to worry about hot starting it because it doesn't stall.  I have a z start (not the pro) that I'm considering installing, but I'm not sure the older/non-pro type worked as nice as the newer versions (clutch lever feel etc).  

Do you still have a decompression lever? It seems to work for me to kick a few times with the decomp lever pulled then kick it over (no throttle). Some suggest next going to the hot start button. Also, if I have my idle screw turned up so it idles fast, it starts much easier. Once I'm going I usually turn the idle down a little so I don't run off the track. Mine is a 01 yz426 w/hot cam exh w/autodecomp - still have lever. Lots of folks say just get a rekluse then you don't usually have to worry about hot starting it because it doesn't stall. I have a z start (not the pro) that I'm considering installing, but I'm not sure the older/non-pro type worked as nice as the newer versions (clutch lever feel etc).

I do have the lever still and am soon ordering a hotcam. I think I may need check the valves and maybe re-clean the carb.

The carb is the single most common source of starting problems with the older 400's and 426's.  You have to get the idle jetted and trimmed out almost perfectly in order to have them hot start reliably.  The bike should only need the hot start for restarting immediately after it's stalled while running.  If it's been sitting for 5 or 10, it should restart without it.  An even slightly rich idle will make the bike difficult to restart when hot.

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