climbing

I want to get some more hill climbing ability on my MB 165. What's the quickest way to improve this?

I got up early this morning and did a check-over of my Trail King trail scooter and headed out to a mountain 12 miles from my house. The Ranger told me about this trail where Dirt bikers and Mountain Bikers ride. I headed out after double-checking the gas and oil levels,tire pressure and drive...

So, I got my Mini Baja up and running tonight and I had glowing stuff to say about it here: http://www.oldminibikes.com/forum/baja-motorsports-doodlebug-minibikes/29532-first-ride-mini-baja.html But it made me wonder about something more "general". Has anyone here built a minibike...

just a regular centrifigul. clutch? Which works best for hills?