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Discussion in 'Yamaha 250cc In-Line 4's' started by robustus0007, May 12, 2007.
How do I increase the idle rpm on my bike, 3ln1? Its a bit low.
in between carby 2 & 3 big screw sticks out the back between them.
my bikes RPM metre starts reading at 3000 rpm how do you guys get the idle rpm to 1500?