thumperclone wrote on 02/20/09 at 06:49:27:wheres the battery?
Battery? I don't need no stinkin' battery. I push start it each time.

Ha ha. The battery is in the right saddlebag.
I've just had a lot of free time the past few weeks. I finally got some real tools too. Up to a week ago the only power tools I had were a drill, hand held angle grinder and orbital sander. I had no vise, no clamps, nothing decent to work with. All has been done by hand. Hack saws, files, etc. I have a pretty good knack at figuring out how to do things with few tools and without help. But last weekend I added a vise, drill press, bench grinder, clamps, tap and die sets, etc. I had a lot of that left over in my parents garage from like 15-20 years ago.
Here's some details about the air filter mod construction.
I used a 4 way PVC connector. I don't know what it is technically called.

Here you can see how the 1/4" threaded rod goes through the whole assembly.

I plugged the ends of the crosswise openings, drilled and tapped a 1/4" hole in each end and threaded the rod through. That both seals it and makes the rod stable.

Then another plug that allowed me to adjust the spacing just right.

Then a large fender washer for stability.

Then the bowls.

Here's a pic of the whole assembly minus the covers.

An added benefit is that the bowls reduce the intake noise so I can hear that lovely exhaust from the custom pipe.