I bought my 05 Kodiak 400 with a half ass snorkel job on it so this weekend I decided to redo all the snorkels. It has 1.5" for clutch in and out and a 2" for the airbox. I also decided to replace the carb since the idle screw had been broken off of the original one. After resnorkeling and installing the carb I noticed the bike was running sluggish. I adjusted the idle screw to get it to idle properly and the idle is fine but when you get on the throttle it sputters a bit and acts as it it doesn’t want to fully open up.

What needs to be adjusted? I did some research and discovered that there is a separate air/fuel screw. Could this be fully opened bc the carb was brand new? Could it be the air box getting too much/not enough air?

Thanks

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