42 tooth sprocket causing issue?

Ducati Forum

Help Support Ducati Forum:

Joined
May 5, 2014
Messages
34
Location
California
First post on this forum and I hope you guys can help me out. I have a 2013 Pani S that has been running rough and it was down on power. I took it to the dealership 3 different times and they fixed the issue each time but the problem came back. The first time they told me it was a kinked cable for the valve in the exhaust. I drove it home and I noticed that the issue came back. I took it back to them and they said the BBS (Black Box System) failed so they installed a new one under warranty. Bike ran great after. I changed the rear sprocket to a 42 tooth and I went with the 520 conversion. After about 800 miles the the DDS failed again so I took it back to the dealership. They noticed that I changed the sprocket and told me this time that the reason for the failure is the sprocket change so Ducati is not going to warranty it. Has anyone installed a 42 on the rear and had the same issue? Any information will help. My bike has been out f service for almost 5 total weeks now with them and I just can't believe a sprocket change would cause this.
 
Last edited:
I'm no expert but I can't see how a sprocket can cause a loss of power. All a sprocket does is adjust gearing. Sounds like the dealer is just looking for any reason to not warranty your bike because even if you had done the 41T conversion like on the R, they would have still noticed a change in gearing and still denied your warranty which is obviously BS. How did they even know it's a 42T sprocket? Did you tell them?

Anyways, either find another dealer or don't accept that BS excuse.
 
They saw that I changed it because I went with a quick change set up. I don't see how the gearing would affect the BBS either and that's why I'm lost with this. I have changed gearing on all of my bikes and I have never had an issue.

I'm sorry BBS (Black Box System).
 
Last edited:
How can changing sprocket damage an electronic component it doesn't make sense (unless that change was done frivolously, damaging an object around the area in the process).
 
I have no idea Marmoot. I think the dealership just doesn't want to warranty it. I have taken it in 3 times for the same issue. The first time was with stock gearing and the next 2 times it was with the 15/42 setup. They didn't notice the gearing change the 2nd time but they noticed it right away the 3rd time. I was just wondering if anyone else has had this issue with a 15/42 combo. I want to try and figure out if I can fight this. Plus I don't have and confidence in this dealership after the screw ups they have already done on my bike but they are the closest to me.
 
Tell them they're idiots.

You're a customer who wants services and would pay for them.

Let them show you a written clause in an official Ducati document where a change of gearing affects warranty or reliability...
If they don't have that, they're bs'ing you.
 
Just put back to stock and take back to the dealer, calling name to the dealer is not going to help you. You want to keep a good relationship unless you have another dealer around.
 
Just put back to stock and take back to the dealer, calling name to the dealer is not going to help you. You want to keep a good relationship unless you have another dealer around.

By the sound of the dealer, they would probably have a record of the third visit and cite it as a preexisting condition. Plus, you would be pandering to their unprofessional attitude.

If you are inclined to go back, I would cite the Magnuson-Moss warranty act and make reference to perhaps making a call to the FTC. May seem overkill, but I don't have the patience for this type of behavior and by owning a Ducati, I imagine you have just as high a standard.
 
Does California have a "lemon law" and if it does do you fall into that category.

If it does go get a lawyer and tell Ducati Corporate that you want your money back because the dealer won't fix the problem.

Even without a lawyer tell corporate what your problem is and that the dealer refused and you are thinking of going "lemon law". That should get the ball rolling and the dealer will be giving you a call to get the bike in and fixed.

Sounds to me as though you have a short in the DDS wiring harness. These are hard to find as my bike stayed in the shop for a while with a similar problem.

Changing sprocket and chain has nothing to do with problem and you should be willing to take to court to prove.
 
Last edited:
California does have a lemon law. I did look into it. I was thinking about mentioning that to them because I may qualify. I have taken the bike back 4 times for this issue and 3 times for the lower fearing being melted by the exhaust because the spring loop is welded in the wrong spot.
 
The Dragon Lady has been running on a 42 sprocket for a long time now without a problem. :cool:
 
You are getting a song and dance routine, what dealership is it? Make them put in writing.
 
They called me today to tell me the bike was ready. I told them I want in writing from ducati why they are not covering this under warranty and how did a sprocket change mess up the BBS.

I don't know about anyone else but I didn't read up about anything in my owner's manual that says "don't use a 42 tooth sprocket".

Motor Cafe in Sunnyvale is the dealership.
 
Last edited:
They called me today to tell me the bike was ready. I told them I want in writing from ducati why they are not covering this under warranty and how did a sprocket change mess up the DDS.

I don't know about anyone else but I didn't read up about anything in my owner's manual that says "don't use a 42 tooth sprocket".

Motor Cafe in Sunnyvale is the dealership.

I don't understand your constant reference to the DDS????
 
Apparently the BBS is part of the electronics that control the way the bike runs. I don't have many details on it but the dealership says that it failed because of a sprocket change.
 
Last edited:
Apparently the DDS is part of the electronics that control the way the bike runs. I don't have many details on it but the dealership says that it failed because of a sprocket change.

No..... The DDS is the computer software system your dealership has to interface with the bike... So what actually failed on the bike?? This dealer is blowing so much smoke its shameful....
 

Register CTA

Register on Ducati Forum! This sidebar will go away, and you will see fewer ads.

Recent Discussions

Back
Top