Hi guys,
I recently bought a second hand Downtown 300i '2009 with less than 9000 miles on it.
Overall I'm pleased with the scooter, but the transmission is taking the pi** with me.
When I bought it I knew I had to put my hands on the clutch as on a test drive I could feel the scooter shattering on take off.
What I did then was opening up the transmission carter, taking off the bell from the clutch, cleaning both the clutch pads and the bell with soft grain sand paper and wiping both with brake cleaner. When I opened the transmission compartment I notice the belt was a bit loose, but decided not to replace it as it's not easy to find spare parts here in the United Kingdom, and I needed to order it back home (Italy) and get it shipped. I've put everything back and test driven the scooter: absolutely PERFECT! Loved it....... until couple of days after... when a horrible noise started coming from the transmission, I'd define it a squeal... not very noticeable at the beginning, but predominant after a few days. Seeking advices from two of my workmates they told me the culprit was the belt, same diagnosis came from a mechanic I briefly spoke with and let him hear the noise. Ordered belt and rollers (since I had to take the variator off the transmission, I though I'd replace it), got them delivered and ready to put them on. This morning together with a workmate with 30+ years of experience in services his bikes, we got the belt and rollers replaced, the whole transmission compartment cleaned with brake cleaner (no brake cleaner on bearings, was very careful), clutch cleaned once again like below. Bolt back in place with a torque wrench. I was so looking forward to riding my scooter without hearing that horrible noise.................. but, well, that noise did not go away, at all...
What, if not the belt, could be responsible for such a noise? That noise was not there before I cleaned the clutch for the first time, I'm pretty sure. I'm attaching a link to a dropbox folder where you can find an audio and a video showing the noise, and a video of the transmission idling without cover.
https://www.dropbox.com/sh/mi6al8k5kywjm6g/AAC8W_GyYH088ME764HyJ3eka?dl=0I'd be very happy to hear from you, I've been reading your forum for a while to seek advices, but now I don't know what to do.
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