Technical Data - Engine - KTM 50 MINI ADVENTURE Owner's Manual

TROUBLE SHOOTING
TROUBLE
Less power of engine
Engine stalling or running with
four stroke cycle
High rpm misfiring
Engine splutters into the
carburetor
Engine overheating
Excessive oil escapes from
transmission breather tube
»
CAUSE
Air filter obstructed
Fuel supply partly interrupted or
blocked
Loss of compression due to loose
spark plug
Exhaust system damaged
Engine has not enough preignition
Reed paddles tensionless or dam-
aged, surface of reed valve housing
damaged
Wear
Carburetor overflows if level adjust
too high, float needle seating is
dirty or enlarged
Loose carburetor jets
Incorrect heat range spark plug or
low quality spark plug
Loose, corroded or non conductive
ignition socket connector
Lack of fuel
Spark plug with incorrect heat
value (Ignition by incandescence)
Engine takes air out of control
Incorrect ignition timing because
of loose stator screws
Incorrect compression ratio
Excessive oil quantity in
transmission
REMEDY
Clean or renew airfilter
Blow through fuel pipe and clean carburetor
Tighten spark plug
Check exhaust system for damage
Check and adjust ignition
Replace reed paddles or reed valve housing
Overhaul engine
Clean carburetor, if necessary replace float needle and
adjust level
Tighten jets
Refer to technical data section
Check and seal with silicon
Clean fuel pipes, examine tank aeration and clean
Fit correct spark plug
Check intake flange and carburetor if firmly setted
Readjust to correct ignition timing specifications, secure
screws with Loctite 243
Measure and adjust compression ratio
Correct transmission oil level
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