YZ Exhaust Cam - Question
Posted January 29, 2008 - 08:01 PM
im looking to add a cam and really want to stay away from hot cams so that leaves me with the yz exhaust cam.
what i want to know is what did you notice different from the stock wr cam
did you have more low end? more mid? more high
Posted January 30, 2008 - 01:48 PM
I have not done that mod but it is next. The stock yz exhaust cams are supposed to be fairly inexpensive and I have heard it makes a noticable difference.
i know all of this! i guess im wondering if it turns the wr motor more in the yz with a stronger hit. more low end
where does the power come on at more noticeably?
Posted January 30, 2008 - 08:00 PM
Posted February 01, 2008 - 04:00 PM
Posted February 02, 2008 - 05:10 AM
When the weather warms up I'll get around to it.
Posted February 02, 2008 - 08:48 AM
I had them put in and picked up the bike the other day. The throttle is a lot more snappier, It sounds and feels a bit more aggresive for sure. I haven't got to ride it yet though except for down the block and back. Maybe today I can get out if I can find somewhere with no snow.
Oh yeah, starting is now really really simple. It was stone cold yesterday and fired on one kick. I have to hold the choke half way out with one hand while kicking, but it fired two times cold on one kick. (I did it a second time later to brag to my roomate, he was unable to start his CRF450 at all after flooding it)
I am unsure if it will need rejetting though. I will see how it rides today hopefully.
Posted February 03, 2008 - 01:49 PM
Posted February 03, 2008 - 04:46 PM
is anyone interested in selling their stock WR I & E cams? I offroad my YZ and would like to try this mod.
You want to decrease your power?
BTW, the intake cam is the same.
Posted February 03, 2008 - 06:03 PM
Do I need just the YZ exhaust cam while leaving my WR intake cam in? (It sounds as if the intake cams are the same)
The Hotcams YZ exhaust cam has issues with our auto decomp? (This is what I have heard in other threads).
OEM YZ exhaust cam is best option based on cost and performance?
Any hidden little tricks?
Posted February 03, 2008 - 08:27 PM
I checked out the different stock cams and heres the deal. My 06 yz 450f has the following numbers, 5TA-12170-10-00, 5TA-12180-10-00. 05 and 06 WR have the same intake as my YZF, exhaust on 06 is 5tJ-12180-20-00, and 05 is 5tJ-12180-10-00. The 07 WR has different intake and exhaust, 5tJ-12170-00-00, 5tJ-12180-30-00.