wr 426 change ex cam

[zisis]

I change the ex cam on my bike wr 426 01 with one of yz 450 03 model with auto decompresion pin from ebay.
I haven't problem with this and i have only a question for the different dimension of the cam chain sprocket is 0,5mm wider from the stock sprocket.Is there a problem?
p.s. How can i put images from the bike on my message?

[Florida 393]

I have had the 450 cam swap in my 02 YZ426 since July 2003 with absolutely no problems. Looking at the timing chain on the exhaust sprocket it sits up a slight bit but engages enough to stay put. I have had no timing changes what so ever nor has the chai ever jumped the cam sprockets. The dimensional difference is minute.

Best of luck with the swap, it is well worth the time.

Bill

[Florida 393]

There is no difference in the YZ and WR top ends. Read the Motoman393 website for inside gouge on doing the swap.

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Here is a link to Satch's instructions with pictures. this helped me do the swap, along with a phone call to Satch

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Best of luck, let me know if you need some help on the swap if you decide to do it.

Bill