I removed my air box lid yesterday and went for a ride yesterday evening. Past 5k RPM the bike acted funny like it was, jumpy is the way I would describe it. I haven't rejetted or put a new exhaust on yet. I'm guessing there's too much air for the air - fuel ratio? Sound right to you guys?

 

Yep! Jet it and mufflerize it!

 

Yep..

 

You called it

 

If your bike is a USA model the main jet is a #115 or a #118. These cause the bike to run lean to pass the newer emissions laws. Removing the lid is compounding the problem. You're over-leaning the air/fuel mixture. Put the lid back on until you fit a #132 main jet, adjust the fuel screw and fit a better breathing exhaust.

 

Thanks for the advice. Will do

 

All I'm seeing is stuff like stage 1, 2, or 3 Jet kits online. I have no idea which kind to buy. Suggestions?

 

my dyno jet kit came with stage 1 and stage 2 in the same kit all stage to is is a bigger jet with air box snorkel romoved

 

go for the highest stage.... more power!!!!! lol.... i have no idea what mine would be considered....

 

stage 15 lmao