[TSO/ISPF]

Originally Posted by twopjt

Have experienced this in both our '17 and our '20 (that has the redesigned exhaust system). The spark arrester on the end of the tailpipe becomes clogged with carbon deposits from the exhaust. If you remove the arrester the problem is solved but you increase the exhaust noise - especially in the newer redesigned system that discharges to the drivers side vs the back of the cart as older models do. Carts and Clubs solution was to clean the arrester and then poke some small holes through the steel wool like material to allow it to breathe more freely. Causes a very slight increase in exhaust noise but not nearly as much as removing the arrester.

On our 2018 Quiet Tech cart:

Had "All About Carts" come take a look. I had removed the bottom pan and boot that covers the exhaust. I could see the mesh that makes up the arrestor was pretty carboned up. I had heard removing this would void what warranty I have left so I decided to see what they would do. He looked at it and took a drill and removed the mesh. I have not noticed much if any increase in exhaust noise. The earliest appointment I could have gotten from the Yamaha "authorized dealer" was September! I guess if I have future warranty issues I will be SOL. From the sound of it this should be a recall item from Yamaha or maybe a class action law suite to get them off their corporate duffs. Another notable mobile cart repair place told me they will void a warranty if you put on a belt that is not OEM.