There had been many discussions over the years regarding what effect of servicing your own bike has on the bike's warranty. Will this effect any potential warranty works that might be needed? Unarguably, the answer has always been a resounding NO. No manufacturers can dictate that all services and parts be from their dealer, and the law always cited was the Magnuson-Moss Warranty Act.
However, it does not stop manufacturers from trying to impose the practice of having their vehicles serviced only by their dealership, and use only their parts. Uninformed consumers will fall for the attempt, but those who are well informed will challenge the attempt. The purpose of this message is to inform new owners of our machines, and provide some solid evidence that the practice of requiring only dealer servicing is illegal, in the US!
DO note that this applies to the US only, and practice in other countries will most likely be different depending on the laws within the country.
Just a couple of years ago, BMW tried to implement the policy on owners of their Mini cars by denying warranty works to an owner who did NOT use the Mini dealership to service his car. Unfortunately, for BMW, the owner is well informed, and the whole issue went to court, and BMW lost! No surprise there! Just for reference, the following is the link to the news of this case:
....and this is what the FTC has to say about the case:
Again, note that this applies to USA only!