Hi!
i've not find silicone spray here...
So i cleaned all the parts, and use white litium grease.
The throttle returned ok, but when i accelerate, i feel the tooth working inside, like: "cli clic clic clic ( no noise, just tactil sensation)
i thought the grease was not dense enough, so i cleaned all and i applied a more dense grease...
Same feeling, but the throttle doesn't returned anymore....sticky..
I cleaned again, and i returned to White lithium.
So no it returns freely, but i feel the "steps"
examining the tooths i see they have a little wear, but i don't remember that feeling in the past prior to let the bike sleeps..
Pulling the cable by hand is easy, and no friction. the throttle bodies moves freely.
Where can be the problem?