I'm looking for a part number for the drive belt on my 2013-14 Piaggio Typhoon 125 4T 2V (USA). I'm the second owner but I know that the prior owner never opened the belt cover so the dealer must have been responsible for putting a powerlink belt on it (789 X 22.2).
The 2010 manual calls for an 841213 (Mitsuboshi) V-Belt, which I believe is an 814 X 22.5 (shout out to the Fabio Dougie and whoever else helped compile the
list on the MV Wiki).
I decided to service the CVT at 5,000 miles just to stay ahead of things so I ended up purchasing an Aprilia 8580200. Aprilia marked this number as discontinued but claimed that it was superseded by OEM# 841213 so it should be 814 X 22.5, right?
After installation I could hear some belt slap but decided to break the belt in and see if the slap dissipated. After 400 miles (about a week and a half of commuting) with only minimal reduction of belt slap I decided to inspect further.
When I opened it back up I realized that the AP8580200 was indeed rubbing against the belt cover and oil pan slightly. I decided to go ahead and remove the belt and put the old Powerlink back on before the AP8580200 could cause any real damage to the seals. Rather than adding a 'Fuzzy Washer' or something else of the sort to make it work, I'd like to know what belt the engineers designed this CVT to operate with.
The trouble is that I can't seem to find a consistent answer for how long the stock Piaggio belt should be. I purchased a 2010 workstation manual from AF1 but the manual doesn't seem to map perfectly onto my 2013 machine. There were some subtle changes between 2010 and 2013, like, for example, increased the wheel size from 10" to 12" so I'm wondering if there might have been other subtle changes as well.
I've exhausted all of my resources on this and the longer I look online the more convoluted it becomes. If you can help, please throw me a lifeline before I end up just going the trial and error route. After reading several forums about this I've realized that most of the confusion I'm experiencing is the result of misinformation spread by uninformed folks. With all due respect to everyone on MV and my fellow scooterists elsewhere, please only comment if you have first-hand experience with this issue. I think it's great if you 'heard' that this or that belt fits, but please don't add to the confusion by offering that information as fact unless you have tried it yourself.
Engine Prefix: M703M
Chassis Prefix: ZAPM707E
Dealer Installed: Powerlink 789 X 22.2
Part # According to the Workstation Manual: 841213 (Mitsuboshi) V-Belt
Dimensions for 841213 According to the MV Wiki:
Pitch: 30 degrees
Any insight would be greatly appreciated.
Last edited by ZenAndScooterMaintenance on Sun Mar 18, 2018 3:02 pm; edited 2 times in total