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Directions: With
the airbox in the subframe, I took a pencil and ran it along the inside
edge of the subframe to roughly mark the new opening. I then removed the
airbox from the subframe and used a straight edge to make a nice line to
cut. With the straight lines drawn in, I used a drill to drill out the
corner so they would be rounded when I cut out the top (any size bit
should work, just depends on how round you want the corners). With a
Dremel tool and a cutting disc I went to town cutting on the line I had
drawn in. Once cut out, I used a file to smooth up the edges. Finally I
cleaned out the plastic from inside the airbox and put everything back
together.
Jetting: With
this mod, I did not make any jetting adjustments, due to my bike was
running slightly on the rich side at the time of this mod.
Improvements: What
I noticed right off the bat was a much crisper throttle response, the
engine seemed to rev faster than before. All in all there was a noticeable
"seat of the pants" improvement, best of all it made my jetting
perfect.
Mod Drawbacks: If
you ride in a wetter climate or cross rivers, opening up your airbox like
this will make it easier for water to enter you engine.
The main reason
why I tried this mod was that all the 2 strokes I have seen have an open
airbox like this and seemed to do well where I ride. If you have done all
the free mods and are looking for a little more, this would be one I would
recommend. With proper jetting you will notice more power and a big grin
hiding behind your helmet.
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