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Does anyone know what the idle speed is supposed to be and how to adjust it? Owners manual no help
 

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Idle speed

1450 rpm +/- 100 ish. You shouldn't adjust it though. If you play with the cable to make it go quicker you will increase idle, but you will burn out some other electrical component. I remember this was an issue on the 125's. They are electronically controlled. If you are having issues with it, take it back to the dealer or risk doing it yourself and pooching your injection system. As per the 125 service manual, it warns against adjusting the white painted screw (Idle). Failure to heed the warning may result in throttle valve and idle control damage.
 

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1500 +/- 100 is what our Owner's manual in India says. But there's no direct provision to play with idle (like a screw etc) has to be done through one of those high tech devices readng the ECU.
 

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I don't have it in front of me, but I'm pretty sure the US manual says it is non-adjustable..
 
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