We just got a 2000 Yamaha Kodiak. Idle is too low. Have to give some throttle always or will stall. Is there a idle adjustment screw somewhere? We couldn't find one PS - Picked the "FZS 400 Fazer" as a model cause it was the first 400 listed that matched with a 2000 model year. Have no idea what its official model number is. Not on the registration, got it 2 days ago.

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.

Typical for any carburetor is 1 1/4 to 1 1/2 turns (out). These are just rough settings to get the saw running. Remove chain, turn idle throttle speed screw in to increase idle rpms so its less likely to stall. Follow mfg instructions for starting.

Once running, adjust low speed mix and allow a couple minutes to warm. Then re-adjust low speed and lower idle rpms by turning out idle throttle speed screw. Then with throttle wide open adjust high speed mix. If saw hesitates from idle to full throttle, open low speed mix 1/8 turn and readjust high speed mix.

If saw doesn't fire in 3 or 4 pulls remove plug. If plug is dry no fuel, if wet either no spark or idle mix to rich (or fuel metering may be fouled).

IS THE CARBURETOR AIR FILTER CLEAN?

Your float adjustment is incorrect, asis your fast idle

Good low idle 750 RPM.You can bring up by small set screw at throttle body.Could be IAC sensor.

this is just your idle adjustment. all you have to do is let the engine warm up to operating temp., then raise the idle. you may need to remove your air intake and filter to get to the adjusting screws. they are usually on the side of the carburetor, right in the center. they may be somewhere else though. some carb's have a cable mounted near the carb to adjust the idel. im not familiar with your specific model. but once you determine where the idle screw(s) are, turn them in clockwise with the engine running. go about 1/4 turn at a time until it will stay running without having to give it throttle.