Can't call me Sqeaky no more!
I added the Scootwork front OD pulley about 3 weeks ago. The first time I had the belt way to tight. Squalled like a cat in a frying pan. So I loosened it up a good bit but it still squealed some. At 55mph you couldn't hear it. But at 35-40 in town it sounded like crickets or cicadas. At first I thought it was out of alignment and rubbing against the side of the pulley. I found out that it was in line, but I couldn't get rid of the squeal. I tries wax but that melted off after 30 minutes at 95 degrees F. I rode it maybe 15-20 hours with this annoying noise. I commute with the bike about 2 hours a day when it isn't raining.
Last night I put it back up on the jack and pulled off the OD pulley. I could see where I was wearing into the metal of the pulley a little with the belt. I don't know if this was from the first way to tight test ride or the later not as tight commutes. The belt looked fine but the pulley was a bit rough looking down in the pockets. I put it back together and just barely snugged it up. Of course it gets a little tighter when you put the bike on the ground and sit on it. Now the squeak is gone. I do hear the slightest of squeaks when coasting below 5mph, but I think it was always that way.
I was thinking this belt needed to be tightened like a v-belt which uses friction for tranfer of force. But with those teeth on the belt, it acts more like a chain so you don't want it to tight. I got the belt in line by letting it run in 1st gear while on the jack. Then I just adjusted the tension bolts until she was tracking where I want it. Like I said above, to much tension seems to be a lot worse than to little with this belt/pulley setup. I mean, you would have to have the belt practically falling off before it would slip anyway. I ended up with my rear axle mark falling about mid-way between the 1st & 2nd mark on the tensioner. I know that may be different for others since belts stretch. But either way, I am just happy that 99.9% of my belt noise is now gone.
Just thought I would share.
'07 VN900 Classic
Horsepower is an illusion.
Torque is the source of all good things.