Belt damaged
Post Reply    Forum -> MP3 Discussion
Author Message
Member
Piaggio yourban 300
Joined: 17 Jul 2019
Posts: 13
Location: Amsterdam
Thu Aug 08, 2019 8:58 am quote
HI there everyone I have a problem with my belt. I wanted to check my drive again today and to my horror I saw 3 big cracks in my belt. I replaced the belt about 3000m ago. On the photo you see 1 crack, the other 2 are smaller. There is also a trace on the belt. Does anyone understand why this could be?

20190808_153933.jpg

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 37492
Location: Pleasant Hill, CA
Thu Aug 08, 2019 9:44 am quote
I immediately suspect a sub-standard, non-OEM belt, or a fake.
Member
Piaggio yourban 300
Joined: 17 Jul 2019
Posts: 13
Location: Amsterdam
Thu Aug 08, 2019 10:33 am quote
Thanks for responding. As far as I know it is original. But now I'm going to doubt. If I have a new one I can see if it is original. It also seems as if something protrudes from the belt. I hope this does not happen with my new one.
Ossessionato
BV350, Primavera 150, Yamaha Zuma 125
Joined: 06 Jun 2013
Posts: 2740
Location: The Twin Cities of Minneapolis/Saint Paul, Minnesota
Thu Aug 08, 2019 10:50 am quote
Did you see any unusual wear when you replaced the previous belt?
Member
Piaggio yourban 300
Joined: 17 Jul 2019
Posts: 13
Location: Amsterdam
Thu Aug 08, 2019 11:45 am quote
The previous belt was completely in pieces. I just wanted to pull up from the traffic light when it cracked. But there was already 16000km on the clock and I assumed that it was never replaced. Now there is 21000km on it and the already starts to tear. half a year ago I also replaced my rear clutch because it was exhausted. I do not understand this damage.
Ossessionato
Gilera Fuoco 500ie
Joined: 11 Oct 2009
Posts: 4039
Location: Netherlands Olst
Fri Aug 09, 2019 12:24 pm quote
i think you didnt clean the clutch good enough the kevlar treads wind on the clutch when it brakes and iff you leave pieces this is what can happen
Hooked
Piaggio MP3 500
Joined: 21 Nov 2017
Posts: 191
Location: Austin, TX
Fri Aug 09, 2019 12:26 pm quote
The groove on the top of the belt cogs is from hitting the case. No big deal, except it might indicate that the belt is too long. The crack is unusual- that belt is failing too soon; good that you are replacing it now because it doesn't have many km left on it.

Both of those things make me suspect that it's not an OEM belt, or it had a manufacturing defect. Buy your new belt from a different vendor.
Member
Piaggio yourban 300
Joined: 17 Jul 2019
Posts: 13
Location: Amsterdam
Sun Aug 11, 2019 8:23 am quote
Thank you all for answering. I replaced my belt today. The old belt had a tear in 4 places. Only on the right side of the belt. I checked to see if I saw any further damage, the only thing I saw is that the belt rubs against the crankcase in some places. I am going to drive for a week and then see if the belt is damaged. After looking at my old belt I saw that this was an original one. It drives really well now. no shocks or bouncing

@Maksor I really cleaned my entire carter inside. I had everything loose and everywhere I had my bits of belt removed. I also saw no trace of filth in my carter today. So it couldn't have been that. Do you also have an idea how this would have come about?
Scooting the Ozarks is a scooter rally held in Eureka Springs, Arkansas offering riders scenic twisty rides, poker run, and more.   vespa scooterwest scooter west Motorsport Scooters   Cool Ass scooter seat cover
Post Reply    Forum -> MP3 Discussion
[ Time: 0.2454s ][ Queries: 25 (0.0242s) ][ Debug on ]