The 5K Thumb Throttle on my Lashout Scooter is getting a little "sticky". When I apply even, increasing pressure, it jumps in tiny steps. If I take my thumb off too slowly, it sometimes does not go all the way back to zero. Two days ago, I had a very nice, super-slow-speed cruise control.
What's the easiest and safest way to clean this and get it working silky smooth again?
Appreciate any and all advice.