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gawarrior

WR426F Mods

12 posts in this topic

Is there a website that has the mods for the WR426F? Or anywhere where I can find out about the mods for my 02 WR426F.

Thanks

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Free Performance Mods you can do for a WR426:

cut throttle stop

remove airbox lid

uncork the exhaust

unplug the grey wire

YZ timing

ACV mod

BK mod

proper jetting (the best mod IMO)

It seems like I'm missing something :)

Do a search here on Thumper Talk for any of these mods to find out how to do them and if you can't find anything, ask away, one of us will guide you.

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Do you notice a difference when the BK mod is complete? What does it feel like? It sounds like a lot of work for a little problem.

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You'll notice a huge difference. When stock, the accelerator pump will squirt for way too long. Mine was about 5 seconds I think. It should only squirt for less than 1 second. It will improve your throttle response by helping to greatly decrease the bog when you open the throttle. It sounds like a lot of work, but it really isn't. Just be careful when drilling and taping the hole so you don't break the tab.

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Is there a website that has the mods for the WR426F? Or anywhere where I can find out about the mods for my 02 WR426F.

Thanks

Nope! There aren't any mods for the '02 WR426. Sorry, wish we could help. Maybe you would have better luck looking for a 4 Stroke website? :D

Okay, I will help you, go to this this website : www.thumpertalk.com

Fryboy :)

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Holeshot ,

I agree with wicked, it's a great mod and super easy. Like he said just be careful with the drill and tap. Use the proper drill size and a drill press if possible to keep the pilot hole as tight as possible. This will make tapping go much nicer.

Doug

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check out the YZ forum on the top of the first page - a huge thread on cam installation with links to info, instructions, etc.

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2 more mods that I remember:

1. Light blue wire - helps make starting easier

2. Lincoln coil-over-plug mod, prettier than stock

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