Modifying the exhaust (56k no)

GoldenMotor.com
I

impression

New Member
Feb 26, 2009
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Syadney,Australia
ok so, i changed to a larger muffler on the back of my expansion chamber which led me to lose 50% of the power in my bike.... Not good. So after a bit of a chat to some guys on these forums ( you know who you are :D ) I got to work

this is what i was greeted with when i cut it open...


Needless to say it was a bit restrictive so i set out to fix that...


and here we have some new sound dampeners to be put in



 
I

impression

New Member
Feb 26, 2009
244
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Syadney,Australia
and here we are



now i forgot to take pics of me fabricating the tether but here's what it looks like welded on



and the finished product so far




Needless to say i need to borrow a mate's angle grinder and trim the edges so to speak and after that i'll be painting it.

Yet to test, i guess that will happen on the way to class in 8 hours :p
 
I

impression

New Member
Feb 26, 2009
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Syadney,Australia
Bike works beautifully.

estimated speed now is 60km/h ( keeping up with traffic on a 60km/h road) on the flat 41t sprocket NT-speed carby Rock Solid 66cc engine.

I now want a 36t sprocket so badly :D
 
killercanuck

killercanuck

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Dec 17, 2009
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Wallaceburg ON
Looks like that'll be alot less restrictive after your mods, quieter too.

Kudos for Arc welding on tubing without blowing through.

(keep an eye on your plug:p)
 
I

impression

New Member
Feb 26, 2009
244
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0
Syadney,Australia
killercanuck said:
Looks like that'll be alot less restrictive after your mods, quieter too.

Kudos for Arc welding on tubing without blowing through.

(keep an eye on your plug:p)
Click to expand...
hehe, yeah it's quite the challenge to arc weld on 0.25mm tubing. especially stainless.

Today the stock welds blew off on the front large tubing mounts.... that's the last time i buy something and use it with such pitifull welds... although the bike was going quite fast at the time.

front mounts were held on by approx 10mm^2 steel weld.

I redone it to be 65mm^2 titanium welds when i got home today. Should hold now :D
zpt
 

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