Power Pack vs. PowerNow
Posted March 31, 2005 - 04:02 PM
Posted April 07, 2005 - 10:41 AM
Posted April 07, 2005 - 02:54 PM
Posted April 08, 2005 - 07:39 AM
make sure you have a 48 pilot and, at the very least, a '04 wr needle. i have never jetted a bike for 5000ft+ elevation, but these have been standards for most all '03 wr450's (along with the 40 leak jet). don't hesitate to try different needle clip positions.
i let this get off the power pack/ powernow subject, sorry. the power pack goes on the engine side of the carb, the powernow in the airbox side. the blade of the powernow is pretty close the carb slide. the intent is to improve intake velocity at smaller throttle openings by smoothing out the air flow in to the carb. with the power pack on the other side of the carb i'm not sure it's working on the same principle.
that said, is it the first thing i would spend my money on? no. i'd get my jetting and suspension dialed in. god knows that k39 front tire has to go.
Posted April 08, 2005 - 11:37 AM