I've got a little stumble below 3000 RPM's? Above 3Grand it runs like a champ! Can anyone help?

 

are you stock or modded? try a pc3 with a map of your current setup and maybe that will help.

 

i did the flapper disconnect, and installed a pciii. it has eliminated about 70% of the stumble. the pciii was well worth the money the midrange feels much stronger on the bike now. and the flapper is a freebee did it first. it did make an improvement but did not eliminate the issue.

 

there is a classic stumble at 2500 rpms on these bikes. flapper helps a little, custom map is really the only way to go.

you can try my map. it was tuned on a load control dyno so i had them specifically take the time to clean up the stumble. torque went up 15 ft/lbs after the map

 

Do you have to have a PCIII to load a custom map?

Baxsom did you have any mods before you got the custom map created?

 

arata pipe
bmc race filters
a tech intake

and yes there is no way to alter the oem ecu without a fuel management device

 

PCIII and custom map. No problems after that.

 

stupid question but does anyone have a custom map for a stock pipe

 

Baxsom, Yeah can I try your map I'm also running a full arata. I had my bike also tuned on a dyno. But it was tuned more for the top end. So I'm willing too try anything to help don't want to pay 250 for another tune.

 

you can download it here
http://www.1000rr.net/vb/showthread.php?t=20934

same username, there are also a lot other maps there that may be even closer to what you have
available for download