Pabst 2006
Junior Member
Offline
Thump Thump KERPOW!
Posts: 81
Rochester, NY
Gender:
|
In May I came a dozen or so feet away from hitting 2 deer, and I promptly got into an exhaust-mod kick. I did almost the same thing as you did, I made 6 x 1/4" holes evenly spaced around the endplate, except I didn't put a plug on the pipe as you did, if I read your post correctly.
The six quarter-inch holes in addition to the stock exhaust opening gave a louder sound at idle, not harsh, just an ominous WHOMP WHOMP WHOMP, think of the deep sound of an Apache/Huey helicopter hovering. When I accelerated from a standstill, the sound, well, you could tell it was a low-budget solution, as it lost a bit of that ominous low-frequency sound and gained an ATV/4-wheeler exhaust sound in those midrange RPMs. I did enjoy it for a couple weeks, and I could actually enjoy the sound of the bike at highway speeds without it being terribly loud.
Then I noticed some problems, primarily that of the air-fuel mixture becoming more lean (than it already was @ stock settings), hesitation and surging at low throttle openings, observed less of low-end and midrange torque, with more frequent afterfire on sharp deceleration, no more pops on shutoff - this time it's a loud blast.
The next step was finding out how to drill out the plug and uncover the idle mixture / pilot adjuster screw, and after many adjustments (it was getting over 8 turns out on the screw), it still was in a very lean condition, which means that lil' piston was enduring hotter temps for a sustained duration. Not good.
The next step after that would be to re-jet and replace the pilot and main jet at the very least, but I had to throw in the towel as I'm only 25% of the way to having the bike paid off and am hesitant to do any further modification.
Some day, some day..... (shakes fist)
-Pabst
|