KTM 300 EXC 2016 User Manual

17 TUNING THE ENGINE 110
17.9 Engine characteristic - setting the auxiliary spring (All 250/300 models)
Warning
Danger of burns Some vehicle components become very hot when the vehicle is operated.
– Do not touch hot components such as exhaust system, radiator, engine, shock absorber, and the brake system. Allow these
components to cool down before starting work on them.
Preparatory work
– Tilt the motorcycle approx. 45º to the left and secure it to prevent it from falling.
102296-10
Main work
–
Remove screws

.
B00056-11
–
Take cap

, adjusting spring

, auxiliary spring

, and spring insert

out of
the clutch cover.
– Pull both springs off of the spring insert.
102297-10
–
Mount the required auxiliary spring

and adjusting spring

and slide them
into the clutch cover together.
Auxiliary spring with yellow marking (54637072300)
Auxiliary spring with green marking (54837072100)
Auxiliary spring with red marking (54837072000)
The recess in spring insert

engages in the angle lever.
Info
Screw

must not be turned as this would worsen the engine characteris-
tic.
– Check the O-ring in the cap.
– Position the cap.
– Mount and tighten the screws.
Guideline
Screw, exhaust control cover M5 6 Nm (4.4 lbf ft)

KTM 300 EXC 2016 Specifications

General

Displacement	293.2 cm³
Bore x Stroke	72 mm x 72 mm
Transmission	6-speed
Fuel System	Keihin PWK 36S AG
Ignition	Kokusan
Cooling System	Liquid cooled
Front Tire	90/90-21"
Rear Tire	140/80-18"
Front Wheel Travel	300 mm
Rear Wheel Travel	335 mm
Ground Clearance	355 mm
Seat Height	960 mm
Fuel Tank Capacity	9.5 liters
Engine Type	2-stroke
Frame	Central double-cradle type 25CrMo4 steel
Rear Suspension	WP monoshock
Front Brake	260 mm disc
Rear Brake	220 mm disc
Front Suspension	WP-USD Ø 48 mm