OP
UTC

Lurker
1973 Rally 180
Joined: UTC
Posts: 1
Location: San Jacinto Mountains, CA
 
Lurker
1973 Rally 180
Joined: UTC
Posts: 1
Location: San Jacinto Mountains, CA
UTC quote
Hello All,
I recently bought a 73' Rally and I am adding the SIP Road "Sport Style" exhaust. I believe it is basically the 2.0 exhaust with two end pipes. The scoot came with a 24/24E injector carb and drilled air filter.

It is currently running:
110 main jet
50/160 idle
BE3 Atomizer
160 Air Corrector

How far up in jetting should I go as a baseline?
@245luigi avatar
UTC

Enthusiast
1960 Vespa Allstate 788.94494 (totalled); 2012 & 2011 Kymco Like; 2005 Stella, 1979 P150X (stationed in Sicily)
Joined: UTC
Posts: 79
Location: Baltimore, MD now Boston, MA
 
Enthusiast
@245luigi avatar
1960 Vespa Allstate 788.94494 (totalled); 2012 & 2011 Kymco Like; 2005 Stella, 1979 P150X (stationed in Sicily)
Joined: UTC
Posts: 79
Location: Baltimore, MD now Boston, MA
UTC quote
Try a 120 jet and see if you sputter when revving out in 2nd, then walk it down
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