yeah woohooo its installed!!!! on second thoughtit blows cuz it wont even fire... i have spark, a new plug, clean filter, gas, compression from a newlybored outmotor to a 440, but it wont fire at all... it ran with the stock carb jetted to some ungodly number main jet, but with the supposed better carb off the 450rit wont even start,the only time it did was when i had about 3/4 of a can of starting fluid dripping off my filter, any help? or has anybody ever done this swap? i tried z400central.com but it wouldnt let me register to ask anybody for some reason