Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
spark arrestor for YZ400f?
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="MWEISSEN, post: 81374, member: 16873"] [b]BMP disk kits for YZ[/b] I've got a '99 WR (with YZ pipe) and an '01 YZ250F that I've installed the BMP kits on. This weekend I ran an event which required 94dB sound limit. At 5 disks, the YZ250F passed at 92.6dB. The WR didn't. I reinstalled the stock WR pipe with a White Brothers Vortip (faster to do than removed a disk believe it or not). This passed at 92.5 dB. I probably could've passed with the BMP at four disks. Down at 5 disks we really didn't notice that much real-world power loss over the 8 disks that were "stock". I'm sure it's there, but it didn't affect rideability. Going back to the WR exhaust on the 400 did cause a performance hit on the low-end, but not enough to ruin a day's ride on! [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
spark arrestor for YZ400f?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom