English, Maintenance work on chassis and engine – KTM 85 SX User Manual

Page 31

ENGLISH

MAINTENANCE WORK ON CHASSIS AND ENGINE

Draining the float chamber of the carburetor

Following every wet-cleaning procedure, the float chamber of the

carburetor should be drained in order to remove any water that may have

penetrated into it. Water in the float chamber leads to engine malfunction.

Make sure you do this while the engine is cold. Close the fuel tap and place

a cloth under the carburetor which is capable of absorbing the leaking fuel.

Unscrew the plug

[1] and clean it with compressed air. Then, mount the plug

together with the gasket, open fuel tap, and check the float chamber for leaks.

FUEL IS EASILY FLAMMABLE AND TOXIC. WHEN HANDLING FUEL, BE SURE TO

EXERCISE THE UTMOST CAUTION. NEVER PERFORM ANY WORK ON THE FUEL SYS-

TEM NEAR OF OPEN FLAMES OR BURNING CIGARETTES. ALWAYS ALLOW THE ENGINE

TO COOL OFF FIRST. IMMEDIATELY CLEAN UP ANY FUEL WHICH MAY HAVE BEEN

SPILLED. MATERIALS SATURATED WITH FUEL ARE ALSO EASILY FLAMMABLE. IN

CASE YOU INGESTED FUEL OR FUEL SPLASHED INTO YOUR EYES, CONSULT A

DOCTOR IMMEDIATELY.

DISPOSE OF THE FUEL PROPERLY!

Checking gear oil level

Allow the engine to warm up, park the motorcycle in a horizontal position (jack

up) and wait for 3-5 minutes to allow the oil to flow back into the clutch

housing. To check the gear oil level, remove the inspection window screw

[2].

Oil should just barely leak out at the inspection window when the bike is in

a horizontal position. If necessary, remove the plug

[4] and add oil (see tech-

nical specifications - engine) (e.g. Motorex Topspeed 4T 15W50).

NOTE: The results will not be correct if the motorcycle is not in a level

position when checking the oil.

NOT ENOUGH OIL OR A POOR OIL QUALITY LEAD TO PREMATURE WEAR OF THE

TRANSMISSION. THEREFORE, USE ONLY HIGH-QUALITY OILS.

Changing gear oil *

Before changing the gear oil warm up the engine and park the motorcycle on

a horizontal surface. Remove the oil drain plug

[3] and drain the used oil into

an appropriate container. Clean the sealing surface. Mount the oil drain plug

together with its gasket and tighten to 15 Nm.

Remove the filler plug

[4] and add 0.35 l gear oil (e.g. Motorex Topspeed 4T

15W50). Mount the filler plug and check the engine for leaks.

NOT ENOUGH OIL OR A POOR OIL QUALITY LEAD TO PREMATURE WEAR OF THE

TRANSMISSION. THEREFORE, USE ONLY HIGH-QUALITY OILS.