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CharlesFP

YZ Exhaust Cam ?

6 posts in this topic

First off, what's the part #, and where is a good place to buy it?

Has anyone done this mod? How did it change the power band? I've been starting to ride the track more, so I want to make my WR as YZ-like as possible. Is doing this modification worth it?

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For what it is worth--a friend of mine had it done in conjunction with a new pipe. He can not be absolutley positive that it provided more power, etc. because he had it done at the same time as having the pipe installed, but he is pretty sure.

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What year wr do you have? In 2003 they come out with the auto decompression cam. Other wise you dont need to buy the cam as I dont think theres any difference in them except the timing mark.

All you have to do is turn your wr exhaust cam one tooth clockwise to set it up for yz timing.

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First off, what's the part #, and where is a good place to buy it?

Has anyone done this mod? How did it change the power band? I've been starting to ride the track more, so I want to make my WR as YZ-like as possible. Is doing this modification worth it?

Get one (if you have an '03+) from the store here, awesomely cheap!!!!!

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i am in the same boat as charles

unfortunately i cant seem to find 05/06 parts listings on oem thumper :thumbsup:

heres a copy and past from another thread

Intakes

For '05 and '06, they are the same, part number 5UL-12170-10-00

For '03 and '04, YZ was 5UL-12170-00-00 and WR was 5UM-12170-00-00

For '01 and '02, YZ was 5NL-12170-00-00 and WR was 5PH-12170-00-00

Here's exhaust :

For '05 and '06, YZ is 5UL-12180-10-00 and WR is 5UM-12180-10-00

For '03 and '04, YZ was 5UL-12180-00-00 and WR was 5UM-12180-00-00

For '01 and '02, YZ was 5NL-12180-00-00 and WR was 5PH-12180-00-00

The '05/'06 exhaust cams are about $30 more than the '03/'04.

'01 and '02 lack autodecomp and the only difference is where the timing mark is in relation to the lobes.

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