Yes, several times actually while in the process of getting a couple different Reflex scooters into running order. All from my pick up truck with its engine off.
No problems while doing it that way. 
__________________
Southeast Michigan Dark Side Rider
4 Honda Reflex scooters & a Big Ruckus
Originator of the "Darkside" Honda Reflex.
"Yeah dude, that IS a car tire there on the back of my scooter."
Sometimes I'm so far outside of the box, the Hubble telescope can't find me
|