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Air mixture setting

306 Views 3 Replies 3 Participants Last post by  doorfx
I have a 2005 Arctic Cat 400 auto. I put a new carburetor on it and from YouTube videos I was under the impression that the factory setting was 1 1/2 turns out for the air mixture screw. It keeps popping, spitting and back firing. I have taken jets out and cleared them. Can anyone confirm the factory setting for the air mixture screw. This one was out 4 full turns. Any help is appreciated.
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2-1/4 turns out is the starting point.

The OEM service manual is available for FREE from under technical information.

Is the new carburetor OEM or after market?
After market. When I turned it in, it was 4 turns out. Thanks for the info!!
It’s a fuel screw not an air screw.
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