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Scooters - 50cc => Agility 50 => Topic started by: phatboy on July 12, 2013, 05:22:12 PM

Title: grinding the variator boss
Post by: phatboy on July 12, 2013, 05:22:12 PM

hey

i see others grinding the boss down to get more top end. i have questions about that

first does grinding the boss mean i get taller gears all the time, so should put in lighter weights so i don't lose bottom end

second so i don't mess up my boss if i grind too much or dont get it straight, wht if i used my old restricted boss with the shoulder on it, and ground off the shoulder. and how smooth does the shoulder have to be, when ground down, is it like a machined surface, if its not perfect will it still be ok?

thanks

Title: Re: grinding the variator boss
Post by: blue on July 13, 2013, 01:50:48 AM

You cant go to far down other wise it will not bold down tight you only need to take about 2 to 4 mm off.If you go to far the threds on the shaft will not bold in tight. I did mine my self with a dremal it needs to be as flat as you can get it. make sure the part you gind is faceing out when you put it back in.