Adjusting the Pilot Screw- Help



2 replies to this topic
  • H0NDAXR600

Posted July 23, 2001 - 06:33 PM

#1

Feel like a Dummy-I'm new to blue, always had Honda in the past. How the heck do you adjust the Pilot Screw on a WR426/01. I looked in my owner's book and it looks like you need to remove the top of the carb. to get at it. Want to adjust the air/fuel mix and can't belive need to take the top off. Still have a POP when I let off the throttle and want to try adjusting to maybe solve the problem.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • yzernie

Posted July 23, 2001 - 06:44 PM

#2

Bottom front of the carb, right in the front center. You'll need a small flat screwdriver to fit in there.

Adjust 1/4 turn at a time. A little bit of pop is ok.

Ernie

  • Boit

Posted July 26, 2001 - 02:05 AM

#3

That is a fuel screw, not an air screw like on 2-strokes. Yzernie is right on the money. Why you think you have to pop off the top of the carb is a mystery to me. The only reason to do that would be to change the needle...or slide. The pilot(fuel) screw is located in a recessed round tube-like area at the bottom of the carb on the cylinder head side...not the airbox side. If you get one of those little mirrors, you can locate it easily for the first time.





Related Content

Forums
Photo

James Stewart back on a YZ450F by YamaLink


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies
Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
Forums
Photo

100 hrs on 2014 yz450f, shim valves or replace them? by ttr230rider6


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  79 replies
Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews
Forums
Photo

First Hare scramble tips by dhend8


Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.