Clark - Advice please



4 replies to this topic
  • Mitch_from_Oz

Posted July 09, 2000 - 09:17 PM

#1

Hey Sir Carby.... :)

My Current setting are:
WR Needle - position 3/4
MJ - 180
PJ - 48
2.25 turns out.
fuel - 96oct

I was at the track on Friday. Cold, a little moist. The bike would seem to cough/choke a little on the power in low/mid. Altitude is about 1500 feet I am guessing.

Here is what I propose and let me know if it makes sense:
YZ Needle - position 4 (5JG-14916-EP)
MJ - 180
PJ - 48
2.25 turns out.
fuel - 96oct

Thanks Mate
Mitch

  • Mitch_from_Oz

Posted July 09, 2000 - 09:19 PM

#2

Oh, Clark, dont forget, the toilet flush and susequent rotation goes the other way... :)

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

Posted July 10, 2000 - 07:10 PM

#3

Mitch

I assume you are YZ timed. The jetting you suggest should be in the ball park. My only suggestions would be to try 1) a 50 PJ at 1.25 tirns on the fuel screw, and or 2) turning the TPS sensor about 2mm clockwise.

Clark

[This message has been edited by Clark Mason (edited 07-10-2000).]

  • James_Dean

Posted July 12, 2000 - 01:11 PM

#4

Mitch and Clark,
The #180 main jet is too big for a first attempt. The YZ426 needle 5JG-14916-EP will open up the nozzle passage above the main jet by 20% at full throttle. The main jet needs to be reduced when switching to this needle. The YZ went from a #175 main to a #165 between '99 and '00 as this change was made.
-Suggest that you try #170-#175 main.
James Dean

  • Clark_Mason

Posted July 12, 2000 - 01:22 PM

#5

Mitch If you are running a "E" series needle with the steeper taper it will come on the main jet faster and require less main--I concur with James on the Main jet you will most likly end up between a 165 to a 175.

Clark




 
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.