Couple pics of my Pro Circuit 496
Posted July 17, 2003 - 02:09 PM
Here is a weird thing with the Jdjetting kit my bike tested at 100dbs.I went back to the stock needle and it dropped to 96dbs.My buddies yz450 tested at 96dbs with no changes. Still don't know why, but isn't that weird?
Posted July 17, 2003 - 02:49 PM
I have got the PC T-4 Exaust and it did not fit the stock head pipe , so now I have to order PC head pipe for it. Another 250USD
Posted July 17, 2003 - 03:39 PM
Posted July 21, 2003 - 06:17 PM
What did you use to seal the exhaust to the header pipe?
I have just put on a Ti4 Pro Circuit (what a fantastic pipe !!!!) but as its only a slip on fit, with no clamping slots, I used a high temp (340C) silastic ... but that burnt away pretty quick. It doesnt appear to leak but I am curious what everyone else uses.
Posted July 21, 2003 - 07:38 PM
I just slipped it over and for extra measure put a hose clamp on it.It is a tight fit and i couldn't feel any leaks.
Posted July 23, 2003 - 03:05 PM
the other day, and my 496 pipe does seem considerably louder. It's rich @ WOT, but definately runs stronger every where else.
I don't have a sound meter, but I don't think the pipe is much quieter than the stock pipe was(open w/previous jetting). I guess it makes sense that it makes more noise when tuned better.
I'm not at all disappointed with the performance, but it is a drag to spend this much money for a 'quiet' pipe that isn't.
BTW, at what RPM, and how far from the pipe did you test?
Posted July 23, 2003 - 03:29 PM
Posted July 23, 2003 - 05:17 PM
Do you know if the JD red needle is richer or leaner than stock. I'm trying to figure out which way to go next.
Good to here you got her jetted right and the sound back down.