Dear all, I'm new in the forum and I would like to share my experience with this issue on Rivale and Stradale tail lights.
My Rivale had a problem with one tail light, (on the 6+1 leds only 3+1 were working randomly) replaced in warranty. After a while the same tail light had problems and the dealer proposed a discount for a new one, but I would have to pay for the replacement.
I didn't liked the reply and tried to find a solution myself. After some research I found out the Italian company FAR is the producer of these parts, (same supplier for Ducati and many other brands) they had legal troubles with MV (I believe due to the MV financial situation), and due to the fact that Rivale was discontinued they didn't had time/will to create a technical revision of those tail lights.
This means that if you buy a brand new taillight from the dealer there is a good possibility to receive it faulty and after a while 3 or more leds will stop working.
After taking apart several lights from my and friends bikes and the problem was every time the same: one or more leds are burned and the whole 3 series will shut down, but they get burned in 90% of the cases because of the SMD cheap and small resistors, glued under clear epoxy that due to extreme heat and vibrations have the days counted.
After many tests I've shared my fixing experience with friends and motoclubs near my area, till being able to provide repair services to anyone interested.
The repair consist in opening the taillight, diagnose the broken leds replacing them. Modify the circuit removing the original SMD resistors and replacing them with bigger (in size not il value) ones in order to better support the heat. several hours of testing and re closing the taillight after cleaning the old resin using UV resistant black silicone. In some cases the replacement of the cables is needed.
For whom that prefer the DIY I've also created with a friend a brand new circuit in replacement of the original one, professionally designed, realized in metal core aluminum board 1,6mm thickness (1mm original), SMD 2512 4w resistors (0,5w original circuit) for the stop light, 22% size enlargement for better heat dissipation, new cable included.
For anyone who's struggling whit this problem please let me know, I'm glad to help.
EDIT: Pictures added, feel free to ask more. thanks @silentservice703 and @esq'z me for the infos!
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My Rivale had a problem with one tail light, (on the 6+1 leds only 3+1 were working randomly) replaced in warranty. After a while the same tail light had problems and the dealer proposed a discount for a new one, but I would have to pay for the replacement.
I didn't liked the reply and tried to find a solution myself. After some research I found out the Italian company FAR is the producer of these parts, (same supplier for Ducati and many other brands) they had legal troubles with MV (I believe due to the MV financial situation), and due to the fact that Rivale was discontinued they didn't had time/will to create a technical revision of those tail lights.
This means that if you buy a brand new taillight from the dealer there is a good possibility to receive it faulty and after a while 3 or more leds will stop working.
After taking apart several lights from my and friends bikes and the problem was every time the same: one or more leds are burned and the whole 3 series will shut down, but they get burned in 90% of the cases because of the SMD cheap and small resistors, glued under clear epoxy that due to extreme heat and vibrations have the days counted.
After many tests I've shared my fixing experience with friends and motoclubs near my area, till being able to provide repair services to anyone interested.
The repair consist in opening the taillight, diagnose the broken leds replacing them. Modify the circuit removing the original SMD resistors and replacing them with bigger (in size not il value) ones in order to better support the heat. several hours of testing and re closing the taillight after cleaning the old resin using UV resistant black silicone. In some cases the replacement of the cables is needed.
For whom that prefer the DIY I've also created with a friend a brand new circuit in replacement of the original one, professionally designed, realized in metal core aluminum board 1,6mm thickness (1mm original), SMD 2512 4w resistors (0,5w original circuit) for the stop light, 22% size enlargement for better heat dissipation, new cable included.
For anyone who's struggling whit this problem please let me know, I'm glad to help.
EDIT: Pictures added, feel free to ask more. thanks @silentservice703 and @esq'z me for the infos!
