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
Dirt Bike Brands - Other
exhaust packing woes
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="Rich Rohrich, post: 1316314, member: 16241"] The OEM exhaust valves on the CRF250 are made up of a Honda proprietary Inconel alloy (very tough stuff) head and lower valve stem which is friction welded to a more conventional steel upper stem (the portion that rides in the valve guide and above). Once the Inconel valve face degrades it has to be ground (not lapped) to restore a proper seal. The reality is, it is almost always cheaper and a damn sight easier to buy a new valve than it is to find someone with the equipment and skill required to grind these valve faces properly. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
exhaust packing woes
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