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Uma Racing Exhaust

sixty-thirty

Super Veteran
I got the Uma pipe for lc135 as well . I dont know if I'm running lean or it's the pipe the pull is too smooth not wild like before
 

SilverTooth

New Member
I got the Uma pipe for lc135 as well . I dont know if I'm running lean or it's the pipe the pull is too smooth not wild like before
Kindly check your sp sir, i think it sounds rich...be sure to check the right burn of your spark plug...and do rejet ..hope it helps..
 

sixty-thirty

Super Veteran
Kindly check your sp sir, i think it sounds rich...be sure to check the right burn of your spark plug...and do rejet ..hope it helps..
Thank for the response. I was wrong It does pull Wild like before maybe a bit more fine tuning. Why did you say rich? I thought from mx King oem exhaust to Uma will make it lean since they say Uma can go 200cc.
 

man_sate

Super Veteran
2 of my friend use Uma exhaust and the result is not satisfying because improve performance only at pickup but at top end feels like blockage or didn't flow properly. They sell it back and use standard exhaust because they want to achieve top end rather then lower end.
I'm using leo vince gp corsa for around 5 years and it perform well enough for any spec. My spec from 65mm with 22/19 and the latest one is 67mm, 10mm jackrod and 24/22 spec.
Only problem is the design is not a standard design.
Kozi standard design is good if you cannot find cj ipoh exhaust. Kozi is more silent but performance is not good enough compare to cj ipoh.
 

SilverTooth

New Member
Thank for the response. I was wrong It does pull Wild like before maybe a bit more fine tuning. Why did you say rich? I thought from mx King oem exhaust to Uma will make it lean since they say Uma can go 200cc.
Better check your sp color... Have u tried plug chop on max rpm? If u dont mind can you post your sp color?
 
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