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mad99horizon

Question on decompression.

3 posts in this topic

'03 and newer, as he said. That includes all YZ450's. Also as pointed out, the upgrade of a 400/426 to auto decompression is both easy and inexpensive.

Here's the instruction sheet

Total parts required: 1 '03 or later YZ450 cam, OR one aftermarket auto decomp upgrade cam.

Read through some of the rest of the thread the instruction sheet is in. All kinds of details are in there.

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