KTM RC 125 User Manual

17 TUNING THE ENGINE 157
17.1 Checking the play in the throttle cable
400192-11
– Check the throttle grip for smooth operation.
– Move the handlebar to the straight-ahead position. Move the throttle grip back and forth
to ascertain play

in the throttle cable.
Throttle cable play 3… 5 mm (0.12… 0.2 in)
» If the throttle cable play does not meet specifications:
– Adjust the play in the throttle cable. ( p. 158)
Danger
Danger of poisoning Exhaust gases are toxic and inhaling them may result in
unconsciousness and/or death.
– When running the engine, always make sure there is sufficient ventilation,
and do not start or run the engine in an enclosed space without an effective
exhaust extraction system.
– Start the engine and let it run idle. Move the handlebar to and fro over the entire steer-
ing range.
The idle speed must not change.
» If the idle speed changes:
– Check the throttle cable routing.

KTM RC 125 Specifications

General

Displacement	124.7 cc
Transmission	6-speed
Fuel System	Electronic Fuel Injection
Bore x Stroke	58 mm x 47.2 mm
Engine Type	Liquid-cooled, 1-cylinder, 4-stroke engine
Max Torque	12 Nm @ 8, 000 rpm
Front Suspension	WP upside-down fork
Rear Suspension	WP Monoshock
Front Brake	Single disc, 4-piston caliper
Rear Brake	Single disc, single-piston caliper
Frame	Steel trellis frame
Front Tire	110/70 R17
Rear Tire	150/60-17