$6 proformance muffler

unraw

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Sep 11, 2008
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Grunthal Manitoba Canada Northamerica Earth Univer
My muffler always fell off because i had to cut it to made it fit and the copper fitting that i had on there didn't work properly.so I made a new one out of some 3/4 inch copper pipe and a thread in lawnmower muffler. it is quite loud. It has insane power now. It feels like I have my 44t back but with still the speed. In the vid you can notice it hesitates before revving. What is this a sign of? Is it running too rich? It did this with my other pipe too. Its also running quite hot since i put it on there. should i be concerned?

http://s499.photobucket.com/albums/rr352/unraw/?action=view&current=HPIM1502.flv
 
well I found out its running pretty lean. So I've fixed the stock muffler. better to have less power than to run it lean. it sure had a lot of power though. I've seen someone on this forum had a xcan muffler. I'll search around and see if i want that. Hopefly I can find a cheaper expansion chamber though. ie: sub $100
 
It does sound lean and lean = heat. Not good for a 2 stroke or any engine for that matter. I would lower the clip on the needle one notch. That will raise the needle and make it a run little richer. Read the plug first to make sure it is a lean condition.

Jim
 
Thanks for the link. ive been looking for a pocket bike exhaust that would fit decent but i couldnt find one. How much did you have to extend it to get it tuned?

dunno about tuning it really, it was really a matter of getting it to fit and keeping it tucked out of the way so I can peddle without getting burned.
 
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