best free mod since grey wire even better...


4 replies to this topic
  • metalmaster117

Posted April 26, 2006 - 05:31 PM

#1

Saves big money over buying a new muffler for us frugal WR owners. Just like the Free mods that make the bike better. This will help the WR's rip. Thanks Dodjy!!--- WR Dave Saves big money over buying a new muffler for us frugal WR owners. Just like the Free mods that make the bike better. This will help the WR's rip. http://img.photobuck.../35mmTPfit2.jpg http://img.photobuck...mmtailpipe2.jpg http://img.photobuck...idemuffler2.jpg http://img.photobuck...besideview2.jpg http://img.photobuck...ave/layout2.jpg

There’s 2 rivets holding the end on the muffler, I just replaced them with aluminium rivets instead of the stainless ones. Had no worries yet. The 29mm tail pipe just fits through the hole in the end cap while the 35mm version fits snug into the lip on the inside of the end cap. Both have heaps less restriction than the stock one and they only took me 30 minutes to make and cost nothing. I still run the stock spark arrestor. I reckon the perforated pipe and packing will improve it as it will effectively add length to the exhaust so should improve low to mid speed. As it stands now it is still the same length as stock but has more power everywhere. Just remember if you cut the 2nd (front) baffle out there’s no going back. With the 1st baffle (rear one) removed, the bike will still be reasonably quiet, especially with the stock tail pipe so it’s worth doing it in stages if you can.

but if your worried about being too noisy, you might want to leave the front baffle in (with the single pipe through it) or do it in stages as there's no going back, apart from bolting your standard tail pipe back on. We ride in the bush where there's no one for miles around to bother. It's a cheap mod (cost me nothing) and you get to keep the stock pipe which I reckon looks better than the aftermarket ones anyway. Here your looking at about $500 to $800 for an aftermarket pipe. Thats quite a few sets of tires which will make you heaps faster than a shiny new pipe. When I add the length of perforated pipe and pack the muffler I'll let you know how how it goes.

thanks wr_dave and dojy for supplying all this info.

so here's my question your gonna have too re-jet right well what should i set it up too what do i put in it i wanna go ridden. :cheers:
:crazy: :ride: :ride: :cheers: :cheers: :lol: thanks

  • Javelin

Posted April 26, 2006 - 05:46 PM

#2

Cool, but the pic link is not working (at least for me)

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Dodjy

Posted April 26, 2006 - 06:30 PM

#3

[quote name='metalmaster117']
so here's my question your gonna have too re-jet right well what should i set it up too what do i put in it i wanna go ridden. :crazy:


I ride between 0 and 3000 ft, 5 to 35 degrees C and a 170 MJ, 48 PJ, adjustable fuel screw and needle 1 groove leaner than the middle groove on the spares needle supplied (I think is similar to the 04 needle) and this seems to be pretty good. I did some plug checks at full throttle and it looked prefect. This was with both baffles out but the spark arrestor in. I have since connected the header pipe up to the tail pipe with perforated pipe and packed the muffler. I can't run the spark arrestor now. The bike is now a little quieter (not as much as I thought it would be) and I think I have lost a little power up top. The jetting looks to have richened up, meaning the bike is probably using less air and has lost a little power. Hard to say as I've been riding in real slippery conditions. I'm not sure if it is worth going the extra and installing the perforated pipe but I will ride with this set up for a while and see how I go.

  • odonnks

Posted April 27, 2006 - 02:04 AM

#4

Javelin, There is an original thread here somewhere with those pics. we'll see if it can be located.

  • Bamster

Posted April 27, 2006 - 04:17 AM

#5

I never thought of using red X's




 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.