Question about 2004 Aprilia RS 125
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Posted on Jan 02, 2017
Can you confirm if this has a 28mm Dell'Orto carb ?
I would think that you might be possibly running too rich in mid range between ¼ and ¾ throttle opening in which you could try to drop your needle (raise the clip)by two notches,and if this helps but not eliminates the problem,maybe a slightly smaller main jet.
Please get back to me if you need more help.
Posted on Aug 10, 2009
SOURCE: Aprilia RS 125 Power Loss
I guess youwillhaveto adjust the clutch cable so as to open the plates more at the pressure plates to let the clutch plate rotate freely instead of binding thus the low rpm.
Hope this helps!
Posted on Oct 30, 2009
You have upset the air fuel flow by changing the exhaust, I would try placing a piece of paper over the air filter to change the intake first, to see what happens, then if that doesn't work, you will need to rejet, and sometimes the factory setting won't work, so you will need an adj jet, Find an aftermarket for your carb I think dyno tune has one. They work great. I hope this helps.
Posted on Apr 06, 2010
hi, know it sounds silly but you are turning the choke off, or does it have an automatic choke. Can you hear the slide hitting the stop inside the carb when you let go of the throttle, try lifting the cable ontop of the carb and not the twistgrip if it goes down straight away, you could have a sticking cable, otherwise check for a split in the vachume pipe if fitted as an air leak may cause this, or a loose clip securing the carb, leaking gasket, or a gumed up slide, the standing could have caused the slide to stick if the fuel in the carb had started to go off and become sticky, remove slide and check , remember to replace it the same way as it only fits 1 way
Posted on Jan 31, 2011
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