49
EN
M1.2.MRD500H.NLFREN - 08022018
7 Troubleshooting
Problem
Cause
Remedy
Engine fails to start
Spark plug wire disconnected.
Attach spark plug wire securely to spark
plug.
Engine and/or fuel valve is not in ON
position.
Engine and fuel valve must be in ON
position
Out of fuel or stale fuel.
Fill with clean, fresh gasoline.
Choke not in open Position.
Throttle must be positioned at choke for
a cold start.
Blocked fuel line.
Clean the fuel line.
Fouled spark plug.
Clean, adjust gap, or replace.
Engine flooding.
Wait a few minutes to restart, but do not
prime.
Belt tension lever is engaged.
Disengage the belt tension lever.
Engine runs erratically
Spark plug wire loose.
Connect and tighten spark plug wire.
Unit running with choke lever in CLOSE
position.
Move choke lever to OPEN position.
Blocked fuel line or stale fuel.
Clean fuel line. Fill tank with clean, fresh
gasoline.
Vent plugged.
Clear vent.
Water or dirt in fuel system.
Drain fuel tank. Refill with fresh fuel.
Dirty air cleaner.
Clean or replace air cleaner.
Improper carburetor adjustment.
Refer to engine manual.
Engine overheats
Engine oil level low.
Fill crankcase with proper oil.
Dirty air cleaner.
Clean air cleaner.
Air flow restricted.
Remove housing and clean.
Improper carburetor adjustment.
Contact the technical service of your
dealer.
One of the two tracks is blocked
Foreign bodies have worked their way
between the track and the frame.
Remove the foreign body.
Machine does not move while engine is
running
Gear is not properly selected.
Ensure gear lever is not in-between two
different gears.
Drive belt not tight enough.
Tighten drive belt.
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