HMF z400 slip on
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HMF z400 slip on
I like the HMF slipon for the Z. I have owned many quads and 3-wheeler's over the years. I have never seen a slipon perform as well as the HMF! It helps the most on the bottom and mid-range with a little more HP on top also. I added the new quiet-core this weekend. It helps quiet it down a lot. I could tell a slight loss of power but, I like the sound better. It can be removed in 5 mi. if you want. Around the house, I will leave it in for the neighbor's. I run a 165 Mikuni main jet with a 2X2 hole in the back of the lid. I found that my Z ran the best with the Pilot, airscrew and needle left in the stock position. Hope that helps.
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Jeff Roper
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
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02-01-2022 11:48 AM
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