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
Honda MX & Off-Road Dirt Bikes
03 cr250 head mod
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="BEEF706, post: 665155, member: 27999"] On my 02 I milled the head first, (keep in mind I am at altititude) this produced a small benefit in lower mid power, I didn,t notice a lack of over rev (not that much of a revver anyway) and I switched to a 50/50 race gas mix to avoid pinging(a preemptive strike on my part, I didn't try it without the gas). The best gain I got was from cylender mods, the base was lowered (I don't know the numbers but the same thickness as a stock base gasket) and the ports reshaped, the bike pulls MUCH harder through the low and mid ranges, I think it signs off a little sooner on top, but it may just be that it gets to that part of the range much quicker, the bike is still smooth for a 2-stroke, but makes power in a much more practical rev range (for me). With the stock cylinder and head mods I still went to a 49 tooth rear with the cylinder mods I went back to stock gearing and it still pulls better out of turns. Hope this helps. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
03 cr250 head mod
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