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Your cart is empty.Dual-cam motor: Intake and exhaust cams sold separately. Excellent mid-range increase, improved throttle response, and smooth power delivery. Intake comes with adjustable sprocket (factory preset at 105). Exhaust cam includes auto decompression mechanism.
Trent
Reviewed in the United States on May 5, 2025
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KR77777
Reviewed in the United States on September 17, 2020
I installed this on a 1999 wr400 with a manual decompression lever. Did the installation myself (first time working with cams) and am very happy with it. The auto compression alone is worth it, bump starting is much easier too. There were some small power changes but mostly noticed it was more linear/smoother delivery.
Julia B.
Reviewed in the United States on March 4, 2020
This eliminates the compression release on the YZ426..the picture is not correct however the part number is. You can not beat this price at all. Madey bike very easy to start with literally a shoe on and noore top dead center game.
Jeramie Bentley
Reviewed in the United States on April 11, 2020
Should have done this along time ago. Knocked 10 years of the bike having to use the decomp lever. More powerful too 4th gear pulls wheelies like 3rd did but I was a little rich on my jetting.
DM
Reviewed in the United States on May 1, 2017
Great product, good quality. For this particular bike yz426f this product is worth it's weight in gold, would recommend it to anyone who owns this bike it make starting it a different world of easy.
GBC
Reviewed in the United States on May 5, 2016
I waited to install it until I rebuilt my yz426 top end, and when I finally installed it, my bike wouldn't start, I checked the valve clearances, cleaned the carburetor, checked the timing multiple times and nothing. I then removed it and re installed the stock camshaft and the bike started on the second kick. I haven't contacted Hot Cams yet, I'm not sure whether I got a defective one.
Cecil Bark
Reviewed in the United States on May 24, 2015
Not used to four-strokes but it's definitely doable by just about anyone.Have a torque wrench. Know your torque values. For the 2002 YZ426 the cam caps are to be torqued at 86.4 INCH pounds. That's roughly 7 foot pounds.Get some feeler gauges. Measuring the exhaust valve clearance before installing this seems a bit silly. It will change once this is installed. Install it, then measure. Then remove if you need to shim. This has a different valve clearance spec than what your official manual will say. It will be on a small card in the box with the cam.
Lloyd L
Reviewed in the United States on March 17, 2014
This thing works amazing! I was ready to kick my bike to the curb till I got this. Now no more decompression lever and I can start it I one or two easy kicks, well worth the money
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