Another method is to use golf club grip tape. Wrap it around the throttle sleeve in a spiral, then wet the tape completely with mineral spirits to soften the adhesive, this also lubes the grip and it slips on very easily. Then leave it cure over night.
When I used to re-grip my own golf clubs I used this method EXCEPT, instead of mineral spirits, I used lighter fluid.

Yeah yeah, I know the potential dangers. But I had seen it done many times by professionals (back in the 80s ) at a couple of different golf shops. The results were perfect AND quick (you know "Time is money" and all that stuff).

So when I did my Valk grips, I used - yes, you guessed it - the above method but with lighter fluid.

I suppose the lighter fluid on my grips and the dark side on the back means . . .
Well, you know where this is going so I'll stop now and just say GOOD LUCK!