KTM 390 Adventure - Owner's Manual > Tuning the engine, Service work on the engine

Tuning the engine

Checking the clutch lever play

Note: Clutch damage

If there is no free travel by the clutch lever, the clutch will begin to slip.

• Check the free travel of the clutch lever each time before using the motorcycle.
• Adjust the free travel of the clutch lever when necessary in accordance with the specification.

• Check the clutch lever for smooth operation.
• Move the handlebar to the straight-ahead position.
• Pull the clutch lever until resistance is perceptible, and determine the play in the clutch lever A.

• If the clutch lever play does not meet the specified value:
  • Adjust play in the clutch lever.

• Move the handlebar to and fro over the entire steering range.

The clutch lever play must not change.

• If the clutch lever play changes:
  • Check the routing of the clutch cable.

Adjusting play in the clutch lever

• Move the handlebar to the straight-ahead position.
• Push back sleeve 1.
• Loosen lock nut 2.
• Adjust the play in the clutch level A by turning adjusting screw 3.

Guideline

• Tighten lock nut 2.
• Position bellows 1.

Service work on the engine

Checking the engine oil level

Condition

The engine is at operating temperature.

Preparatory work

• Stand the motorcycle upright on a horizontal surface.

Main work

• Check the engine oil level.

Info After switching off the engine, wait one minute before checking the level.

The engine oil must be between the A and B markings .

• When the engine oil level is below the A marking:
  • Add engine oil.
• When the engine oil level is above the B marking:
  • Correct the engine oil level.

Changing the engine oil and oil filter, cleaning the oil screens

Warning: Danger of scalding

Engine and gear oil get very hot when the motorcycle is ridden.

• Wear suitable protective clothing and safety gloves.
• In the event of scalding, rinse the area affected immediately with lukewarm water.

Note

Environmental hazard

Hazardous substances cause environmental damage.

• Dispose of oils, grease, filters, fuel, cleaning agents, brake fluid, etc., correctly and in compliance with the applicable regulations.

Info Drain the engine oil while the engine is at operating temperature.

Preparatory work

• Remove motor guard.
• Remove the engine guard retaining bracket.
• Place the motorcycle on a horizontal surface using the side stand.

Main work

• Place an appropriate container under the engine.
• Remove oil drain plug 1 with the O-ring.
• Remove oil screen 2 with the O-ring.
• Remove screw plug 3 with oil screen 4.
• Allow the engine oil to drain completely.
• Thoroughly clean the oil drain plugs and oil screens.
• Position oil screen 2 and mount and tighten oil drain plug1with the O-ring.

Guideline

• Mount and tighten screw plug 3 with oil screen 4 and the O-ring.

Guideline

• Remove screws 5. Take off oil filter cover 6 with the O-ring.
• Pull oil filter 7 out of the oil filter housing.
• Allow the engine oil to drain completely.
• Thoroughly clean the parts and the sealing surface.

• Insert new oil filter 7.
• Oil the O-ring of the oil filter cover. Mount oil filter cover 6.
• Mount and tighten the screws.

Guideline

Info Too little engine oil or poor-quality engine oil will result in premature wear of the engine.

• Remove filler plug 8 with the O-ring, and fill up with engine oil.

• Mount and tighten the filler plug together with the O-ring.

Danger: Danger of poisoning

Exhaust gases are toxic and inhaling them may result in unconsciousness and death.

• Always make sure there is sufficient ventilation when running the engine.
• Use effective exhaust extraction when starting or running the engine in an enclosed space.

 

• Start the engine and check for tightness.

Finishing work

• Install the engine guard retaining bracket.
• Install the motor guard.
• Check the engine oil level.

Adding engine oil

Info Too little engine oil or poor-quality engine oil will result in premature wear of the engine.

Main work

• Remove filler plug 1 with the O-ring, and fill up with engine oil.

Engine oil (SAE 15W/50)

Info In order to achieve optimal engine oil performance, it is not advisable to mix different engine oils.

We recommend changing the engine oil when necessary.

• Mount and tighten the filler plug together with the O-ring.

Danger: Danger of poisoning

Exhaust gases are toxic and inhaling them may result in unconsciousness and death.

• Always make sure there is sufficient ventilation when running the engine.
• Use effective exhaust extraction when starting or running the engine in an enclosed space.

 

• Start the engine and check for tightness.

Finishing work

• Check the engine oil level.

See also: