I've got a yamaha kodiak 400 and ca't get it to idle. Appears to be to rich. If I turn the fuel off it will idle ok. I,ve checked the float level hight and starter plunger but have run out of ideas.

get a colortune tool.it shows how your firing.read instructions that come with,so simple to tune carb in with.sounds like pilot out of adjustment.could also have a leak in ur carb boot or head.take a torch without lighting open valve with motor running run torch around gaskets and front of carb boot listen for change in motor.if it gets higher rev uve found a leak.

fuel filter is in the petcock where you turn the gas on and off

The high speed jet isn't rich enough or the carb passages needs to be cleaned. You can move the clip down one spot on the needle so it gets more gas, this will also give you more power at the top end.

IS THE CARBURETOR AIR FILTER CLEAN?

Check the float it maybe set too high... the gas falling into the float isn't running long enough before the float shuts her down.. Also check that the line from the fuel tank is clear and not full of kinks. Then set the low idle and high idle needle valves on the carb... call manufacturer or local much to get the screw turns...make sure the rubber seal between the engine and the air is not sucking in air. ... it's usually like a mini pipe.

remove the carb, then remove the float bowl. you will have to turn the carb up-side down and set your floats level. just bend the little metal tab to so.

1998 Yamaha Kodiak 400 Wiring Diagrams 2001 yamaha kodiak wiring diagram... This might help you to find the problem

as soon as your bike begins to high idle it will not fall into gear you probably will need to set your linkage on your shifte

Your float adjustment is incorrect, asis your fast idle