How do you make an XR200R sound good?

[NighthawkNZ:Me]

How do you make an XR200R sound good?

buy turning the key off...

[oldskool]

buy turning the key off...

aaah the reliable simplicity of a no frills real dirt bike.. it doesn't use a key!
and no I wouldn't waste money to buy(ing) a key either!
...and I'll say it before you... because no one would want to steal it!
Can't argue against a 21 yr pedigree tho', not like one of these out of date within 4 yrs show ponies that are so expensive to run.

Anyway a quick summary.
Looks like the best contribution so far is arj127 with his recommendation to visit Custom Chambers.

[CookMySock]

Do you mean Damon at Cycleworks? He is an expert and def makes them for this model...
http://www.cycleworks.co.nz/

Yeah thats him. Tempted to get a rowdy muffler for by 650 vtwin. That should wake the neighborhood up.

Steve

[oldskool]

I've read in some aussie V8 forum talk of using hotdogs, which are short little resonators, instead of mufflers to make their shortblocks sound good. Then some guy on trademe suggested using a hotdog muffler on my bike. Coincidence? He reckons they were used a lot in the 70's. I've never heard of them used on a bike but the idea sounds novel. Anyone had experience with them (hotdogs)?

[idleidolidyll]

John Britten used resonator boxes on his bike so it would seem they can be made to be useful on a bike

[motorbyclist]

now i know you can't get them for an XR, but whatever happened to those powerbomb exhausts? my mate got one for his yz426f and is made a noticable improvement right through the rev range, giving it a smoother and more responsive feel....

sounded a bit better too but that may have just been because it was so damn nippy

http://www.onoffroad.com/Merchant2/m...de=ATV-EXHAUST

[oldskool]

That powerbomb link makes a good read. The concept sounds like it should work. Be interesting to make a 3D simulation of it with a physics engine setup for the exhaust environment and drag the 'bomb' around to find the best sweet spot in the manifold bend.
Anyway I bought the hotdog off the trader and hopefully will have it mounted this weekend. He said the 'dog' may need repacking and reckons it will give me a better exhaust flow and improved throttle response. Oh yeah and a deeper tone which is what I'm looking for.
Yesterday at Woodhill I got caught behind a CRF with a powerpipe and the damn thing kept blasting hot pulses into my face. Next time it'll be my turn. Bring it on!

[tommorth]

made somthing like this for my old xr went to pitstop with a bit of wire bent in general shape wanted and got them to bend a bit of pipe to suit leaving enough to run right through muffler on end then got some 3inch pipe aprex 200mm long squash it a little in the vice traced out the oval shape on some thin steel for end caps cut holes in endcaps to suit exaust pipe weld them on .Slide it over exaust pipe make in position you want remove then cut some slots in the pipe and hamer one side down to tempt gasses not to go straight through. refit weld together weld a little bracket on so it can be bolted on easy peasy .
ws quite loud but not obnoxiosly so definitly louder than a stock xr with the baffle removed had a nice snarl ive got a pic of it somewhere.

excuse my little doodle in paint its not pretty but you get the idea

[gammaguy]

by recording the sound of a two stroke,putting it on your i Pod and listening to it the whole time youre riding,with the volume maxed.

[oldskool]

made somthing like this for my old xr

Nice job Tommorth, is that a XR250 or 500? Pic angle makes the bike look tall. Small wheel up front, got rid of the claw?

[tommorth]

just the angle still has thew 23 on the front 80 xr250

possibly my favorite bike i've owned some bastard pinched it a few years ago