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sdg8569

99 WR400 carb question!

4 posts in this topic

Ok! I feel a little stupid asking this question but I dont want to waste my time ripping it apart. I cant seem to find the pilot screw on my 99 WR400 carburator. My 05 YZ was easy but I dont know I cant seem to find it while its installed on the bike. Can someone tell me were it is and which way to adjust it. My bike back fires when I let off the gas so I believe its running lean. Don't beat on me to bad!:thumbsup:

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Open the float bowl. Turn carb upside down. put hot start and choke on your left. Center is the main. Pilot is below it. Start jet is at 2 o'clock from the main.

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Open the float bowl. Turn carb upside down. put hot start and choke on your left. Center is the main. Pilot is below it. Start jet is at 2 o'clock from the main.

He's asking where the pilot screw is, not the jet. I have a YZ400F. I think it's the same as the WR. There's a bolt to access the jets on the bottom of the bowl. Just in front of that is a small hole with the screw deep inside.

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