Originally Posted by Esto65

My 2010 390 has the same issue; in particular when I'm putsing around with my youngest and the bike gets hot. My bike has a new pump, a fan, and it has reflective tape under the tank to try and help keep things cool and this still happens.

Galbo's suggestion works but its always nerve wracking when this happens. Unfortunately, you can't get a kick start kit for the 70 degree motor so when the battery's drained, you're walking.