02-25-2002, 06:37 PM
I want to up the compression on my 250X, but the only one made is 12:1. I don't really want to run race gas, but I've seen in all of the posts that 12:1 compression needs race gas. I went to Wisco's web site and they noted that this piston didn't need race gas. Would it be because of the small bore of this machine? What are your thoughts or has anyone does this to their 250X? My mods are: white brothers e series web all around cam, K & n filter, and modified air box lid. Thanks