13/1
1/14 M40-2 (Naked)_EN
ENGLISH
ENGLISH
M
40.2
TROUBLESHOOTING
REV
.4-06/19
Problem
Possible cause
Solution
PETROL ENGINE
The motor does not start up, or starts
up and then stops immediately.
1) Key / engine switch in the wrong positions
2) Lack of or insufficient oil in the motor
3) Faulty motor stopping device (oil-alert)
4) Lack of fuel in tank or fuel tap closed
5) Fuel filter clogged
6) Bad gasoline. Gasoline oxidizes and deteriorates over
time, causing hard starting
7) Dirty or faulty spark plug
8) Battery not activated, low or faulty
9) Battery cable terminals loose or corroded
10) Cold motor
11) Fuse burnt out
12) Other causes
1) Verify start-up procedure
2) Refill or top off
3) Replace
4) Refill the tank. Open the fuel tap
5) Clean or replace
6) Drain fuel tank and carburetor. Refuel with fresh
gasoline.
7) Clean or check and eventually replace
8) Activate, recharge, or replace the battery
9) Tighten and clean. Replace if corroded
10) Hold the command CHOKE, after starting, for a time
longer
11) Replace fuse
12) Consult the motor Operating Manual.
The motor does not accelerate.
Inconstant speed.
Too little power provided by motor.
1) Air or fuel filter clogged
2) Bad gasoline
3) Overload
1) Check the air filter
2) Drain fuel tank and carburetor. Refuel with fresh
gasoline
3) Check the connected loads and if necessary reduce
Other problems or inconveniences
on the engine.
Consult the motor Operating Manual
DIESEL ENGINE
The motor does not start up, or starts
up and then stops immediately.
1) Lack of fuel in tank or fuel tap closed
2) Fuel filter clogged
3) Air leaks in fuel system
4) Battery not activated, low or faulty
5) Battery cable terminals loose or corroded
6) Faulty motor stopping device
7) Other causes
1) Refill the tank. Open the fuel tap
2) Replace
3) Check the feeding circuit
4) Activate, recharge, or replace the battery
5) Tighten and clean. Replace if corroded
6) Replace
7) Consult the motor Operating Manual.
The motor does not accelerate.
Inconstant speed.
Too little power provided by motor.
1) Air or fuel filter clogged
2) Overload
1) Clean or replace filter element(s)
Consult the engine Operating Manual.
2) Check total load and eventually decrease
Other problems or inconveniences
on the engine.
Consult the engine Operating Manual.
WARNING
●
Have
qualified
personnel do maintenance and troubleshooting work.
● Stop the engine before doing any work inside the machine. If for any reason the machine must be operated while working inside,
pay attention mo-
ving parts, hot parts (exhaust manifold and muffler, etc.) electrical parts which may be unprotected when the machine is open.
● Remove guards only when necessary to perform maintenance, and replace them when the maintenance requiring their removal is complete.
● Please wear the appropriate clothing and make use of the PPE (Personal Protective Equipment), according to the type of intervention (protective
gloves, insulated gloves, glasses).
● Do not modify the components if not authorized. - See pag. M1.1 -
!
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