Jetting

[Nick24]

I have a 2001 400ex. I took the airbox lid off with moose foam filter and im putting on a hmf comp series slip-on it.

I am at about 950ft above sea level.

What size jets should i use? Air/fuel screw adjustment?

Im thinking 42 for the pilot for sure and not sure about the main.

Thanks, Nick

[jake"08"400]

155 to 158 main 42 pilot 2.5 out on f/a screw and stock needle position should be close if I had to guess. http://www.exriders.com/vbb/showthread.php?s=&threadid=445695&highlight=jetting+placement

There's some more good helpful hints

[Nick24]

Originally posted by jake"08"400
155 to 158 main 42 pilot 2.5 out on f/a screw and stock needle position should be close if I had to guess. http://www.exriders.com/vbb/showthread.php?s=&threadid=445695&highlight=jetting+placement

There's some more good helpful hints
Perfect!

Thanks for a quick reply!

[jake"08"400]

No prob man any time you got any other questions just let us know il help as much as I can and there are way more intelligent guys on here that can help you out with stuff I can't are give you better advice than me. But try and search it first youl find alot of stuff.