wr 400 wr/yz timing, hot cams timing
Posted April 26, 2008 - 07:44 AM
thanx in advance.
Posted April 26, 2008 - 08:24 AM
Posted October 31, 2008 - 06:32 AM
exhaust cams were designed off of the performance for the YZ. We recommend the use of the stock timing marks on the cam sprockets. If you would like to play with the timing that is your decision. When doing so be sure to recheck your valve to piston clearance.
Any idea, if turning it counterclockwise, would it be the good old WR, because in tight stuff it really isn't pleasant to ride the YZ timing.
Posted November 01, 2008 - 11:56 PM
The other thing you might try, if you have a HotCams intake cam, is messing with the intake cam timing. I believe retarding it more will smooth out the powerband a bit...but be sure to check valve clearances!
Posted November 02, 2008 - 05:56 AM
That's primarily, why I bought it.
5 valve- It should be...except that the auto-decompression mechanism will not work.
Have you tried it WR timed not working autodecomp?
The pin does have some height to it, maybe it would press the valve at least enough to let the compression out at TDC.
Posted December 20, 2008 - 01:25 AM
Tad stiffer on the WR side, but still no need for manual decomp.
Did notice, that hotcams has steeper edged cam lobes, so valve, and therefore throtthle response is much crisper in both YZ and WR timing, compared to stock cam. Same goes for power buildup.
Posted December 20, 2008 - 05:56 PM
Posted December 20, 2008 - 11:57 PM
Too much power hitting in middle rpm for woods riding.
But the power increase, or should I say torque, is still noticable, while maintaining good traction and throtthle response control on loose soil uphills.
I keep all the valves on the larger side of the allowed clearance.
Posted July 01, 2013 - 08:49 PM