Post by prodigit on Mar 7, 2013 16:47:24 GMT -5
Hi,
On my ATM50, I've noticed at speeds above 45MPH, the belt started making a chirping noise.
I've opened the CVT housing, and see nothing peculiar, aside from a shiny ring on the variator.
The whole variator looks like metal, but on the outside of the variator, it is shiny like a mirror.
I know I mostly ride with open variator on this scooter (speeds above 35MPH), however, I don't think the problem is at the variator, as the sound comes from the back (the pulley).
Haven't checked the pulley yet, but I do think that perhaps the same thing is happening there.
The pulley probably is polished up by the belt always being in the same place, at the beginning (or center) of the pulley, near the axis.
The funny thing is, that it does not chirp, when riding slower than 40-45MPH. Only happens when going faster than 45.
Initially it started making noise, as I was doing a long ride, and thought that the belt must be very hot.
I did an oilchange, both on CVT and engine, and the issue went away, until later today when I came back home.
Like said, seems to happen only when I'm going faster than 42MPH, 45MPH mostly.
Today I've ridden about 1 minute @50-53MPH, and did not notice the chirping sound; only at the end of the trip.
What could it be? Any solution?
(Ow, forgot to mention, when the belt is cold, it sometimes stays up the variator. This makes me believe that either the variator, or the pulley is not giving sufficient pressure on the belt.
Ideas?
On my ATM50, I've noticed at speeds above 45MPH, the belt started making a chirping noise.
I've opened the CVT housing, and see nothing peculiar, aside from a shiny ring on the variator.
The whole variator looks like metal, but on the outside of the variator, it is shiny like a mirror.
I know I mostly ride with open variator on this scooter (speeds above 35MPH), however, I don't think the problem is at the variator, as the sound comes from the back (the pulley).
Haven't checked the pulley yet, but I do think that perhaps the same thing is happening there.
The pulley probably is polished up by the belt always being in the same place, at the beginning (or center) of the pulley, near the axis.
The funny thing is, that it does not chirp, when riding slower than 40-45MPH. Only happens when going faster than 45.
Initially it started making noise, as I was doing a long ride, and thought that the belt must be very hot.
I did an oilchange, both on CVT and engine, and the issue went away, until later today when I came back home.
Like said, seems to happen only when I'm going faster than 42MPH, 45MPH mostly.
Today I've ridden about 1 minute @50-53MPH, and did not notice the chirping sound; only at the end of the trip.
What could it be? Any solution?
(Ow, forgot to mention, when the belt is cold, it sometimes stays up the variator. This makes me believe that either the variator, or the pulley is not giving sufficient pressure on the belt.
Ideas?
..BAD TO THE BONE..