Installed HMF Exhaust On My 350

Odered this package from ATVGALAXY on ebay, consisted of HMF polished slip on, HMF basic jet kit, and a UNI air filter. Install was straight forward, I went with the 142 main jet as per HMF instruction. Rejet was easy, loosened the clamps holding the carb on to the engine and then removed the carb bowl by removing four screws. Removed the stock 130 main jet from the center of the carb with a flat head screw driver and reassembled.

Click the image to open in full size.

Click the image to open in full size.

The thing I dont like about the pipe is the way it sticks out the back of the bike, its long imo. I’d be afraid of hitting the pipe while backing up or dragging the tip off the ground during an aggressive wheely:)

Click the image to open in full size.

I knew from the start I was going to cut it down to shorten it up. I drilled out the rivets to take the pipe apart and proceeded to cut about 1.2 inchs out of the can which just brought it to the end of the HMF logo plate. Here’s the after.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

The pipe sounds good, from the short ride around the yard there is a small increase in punch as its easier to loft the front end up. Still too much snow out in the woods to really test it out, but soon.

Installed HMF Exhaust On My 350

Odered this package from ATVGALAXY on ebay, consisted of HMF polished slip on, HMF basic jet kit, and a UNI air filter. Install was straight forward, I went with the 142 main jet as per HMF instruction. Rejet was easy, loosened the clamps holding the carb on to the engine and then removed the carb bowl by removing four screws. Removed the stock 130 main jet from the center of the carb with a flat head screw driver and reassembled.

Click the image to open in full size.

Click the image to open in full size.

The thing I dont like about the pipe is the way it sticks out the back of the bike, its long imo. I’d be afraid of hitting the pipe while backing up or dragging the tip off the ground during an aggressive wheely:)

Click the image to open in full size.

I knew from the start I was going to cut it down to shorten it up. I drilled out the rivets to take the pipe apart and proceeded to cut about 1.2 inchs out of the can which just brought it to the end of the HMF logo plate. Here’s the after.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

The pipe sounds good, from the short ride around the yard there is a small increase in punch as its easier to loft the front end up. Still too much snow out in the woods to really test it out, but soon.