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Mitch_from_Oz

Clark - Advice please

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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

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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).]

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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

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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

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