How to Remove a Motorcycle Exhaust Baffle on a Yamaha

All motorcycle manufactures use restrictive baffles inside the exhaust to quiet down the engine and to create backpressure on the engine. Yamaha motorcycles like the V-Star 1100 are no different. Some motorcycle manufacturers make it easy and secure the baffles using bolts. Some mold the baffles into the exhaust -- this is what Yamaha did. If you want to remove the baffles in the Yamaha exhaust, you must make permanent modifications.

Things You'll Need

• Hole saw, 1 1/2-inch
• Electric drill
• Needle nose pliers

Instructions

1. Locate the exhaust end cap on the very end of the muffler. The end cap reduces the rear hole in the muffler from almost 2 inches to just over 1 inch. The baffle is located behind the end cap. There is an end cap on the top and bottom exhaust pipe.

2. Drill a hole through the end cap using a 1 1/2-inch hole saw and an electric hand drill. There are two layers of metal in the end cap. Drill through both of them. The cut portion of the end cap remains in the hole saw. Do this step on both the top and bottom exhaust pipe.

3. Locate the baffle in the center of the pipe. Pull it out of he exhaust pipe using a pair of needle nose pliers. Do this with both the top and bottom exhaust pipe.

Tips & Warnings

• Check with your local law enforcement to determine if removing the baffles from your Yamaha will keep you in compliance with local emissions and noise pollution regulations.

References

• "Yamaha V-Star 1100, XVS1100, XVS1100 Custom, XVS1100A Classic Repair Manual 1999-2009"; Clymer Staff; 2009