by old paul » Sat Apr 12, 2008 7:50 am
Cannot speak to the Holeshot, but on my Traveller I've just taken off the M4 that came with it. I found it entirely too loud. The bike has been rejetted and "we did some other things as well", but I don't know what all that was.
What I found to put on it is a Super Trapp. It's brushed stainless and about the same weight as the M4. I have no idea what the original even looks like, much less weighs.
In terms of tuning, I began with six discs, finding that it ran quite rich with a bad flat spot at 5,000rpm. Adding two discs completely took care of all driveability issues. It now idles smooth, has no backfiring, hesitation or flat spots at any rpm, from idle right up to 7,000 under light or heavy load. The throttle response is much more linear than before as well, as with the M4 it seemed almost like an on/off switch. It's a bit louder than I'd hoped, but much quieter than the M4.
Sorry I cannot compare the Trapp to stock or Holeshot, but thought I'd add this experience to the thread since the Trapp system is tuneable and you can probably hit just the right setup without having to fiddle with the carbs.
Motorcycling used to be my second favorite thing, but now that I've become an old man, it's moved up a notch.