EN
16
engine off and cool with a soft cloth and neutral cleaning products.
TRANSPORT
The transport must be carried out only on a cold engine, pay
close attention to fuel leakage which could cause fires.
ORDINARY MAINTENANCE
The routine maintenance work must be carried out before each
start. See table of maintenance to Pag.18 under: "every use".
EXTRAORDINARY MAINTENANCE
See Pag.18
REMOVAL AND CLEANING OF THE AIR FILTER
Regularly clean or replace the air filter as this, if dirty, can
compromise the performance of the engine and accelerate the
deterioration of some parts such as piston, bands and cylinder.
To access the air filter loosen the metal clamp of the air box and
unscrew the 6 screws of the cover. Wash the filter material in hot
water using detergent or gasoline and let it dry. Clean the inside
of the air box making sure that there are no foreign objects or
powder inside. Reassemble everything. Every 2-3 washes the
filter should be replaced with a new one. If the filter has a high
concentration of dust and dirt must be replaced with a new one.
REPLACEMENT STARTER ROPE (MANUAL ENGINES)
Before performing the following operation wear protective
gloves and glasses!
Proceed with the steps below:
1) Remove the starter from the engine by unscrewing the 4
screws;
2) Hold the center plastic pulley remove the node of the handle;
release the central pulley by the slowly discharge of the spring
to avoid damage;
3) Remove the central screw, the metal cover and the cylindrical
spring;
4) Remove the three engagement teeth being careful not to lose
the three small springs;
5) Remove the pulley from the plastic housing of the starter and
the old rope from the pulley;
6) Take the new rope and tie a knot at one end;
7) Insert the new rope into the hole;
8) Wrap the rope in the seat observing the direction of rotation
of the pulley
NB Do not wrap the rope on the pulley for more than three
turns;
9) Replace the pulley into the crankcase of the starter making
sure to properly attach the return spring;
10) Replace the engagement teeth, the cylindrical spring, the
metal cover and the central screw;
11) Pass the end of the rope without knot through the hole in
the casing of the starter, replace the handle and make a tight
knot;
12) Replace the starter on the engine by tightening the 4 screws.
REPLACEMENT SPRING STARTER (MANUAL ENGINES)
Before performing the following operation wear protective
gloves and glasses!
Proceed with the steps below:
1) Remove the starter from the engine by unscrewing the 4
screws;
2) Hold the center plastic pulley remove the node of the handle;
release the central pulley by the slowly discharge of the spring
to avoid damage;
3) Remove the central screw, the metal cover and the cylindrical
spring;
4) Remove the three engagement teeth being careful not to lose
the three small springs;
5) Remove the plastic pulley from the crankcase of the starter;
6) Remove the old spring and replace it with the new one;
7) Reposition the spring respect to the plastic pulley as picture
2;
8) Re-insert the plastic pulley into the crankcase of the starter
making sure to properly attach the new spring rewinding
mechanism;
9) Replace the engagement teeth, the cylindrical spring, the metal
cover and the central screw;
10) Pass the end of the rope without knot through the hole in
the casing of the starter, replace the handle and make a tight
knot;
11) Replace the starter on the engine by tightening the 4 screws.
picture 2
REPLACEMENT MEMBRANES OF THE CARBURETOR
1) Remove the air box by loosening the hose clamp;
2) After removing the throttle cable from the carburetor, fuel
hose and that of the vacuum pump, unscrew the Allen screws
and remove the carburetor from the engine;
3) Remove the top cover;
4) Remove the membrane to replace, clean the air filter and install
the new membrane making sure to engage the equalizer fork
into the groove located under the membrane;
5) Replace the cover and tighten the 4 screws in an appropriate
manner;
6) Remove the cover bottom;
7) Remove the diaphragm to be replaced, clean the filter and
place the new diaphragm;
8) Replace the cover and tighten the 4 screws in an appropriate
manner;
9) Reassemble the carburetor, making sure all parts are correctly
positioned by tightening the bolts as table.
10) Reconnect the fuel hose, the vacuum hose, the throttle cable
and the airbox
CORRECT BEHAVIOUR DURING THE USE
Use the full power only in certain eventualities.
In order to avoid cases of too lean, release the accelerator until
a downturn and then riaccelerate gradually until you get an
appropriate rate.
OPERATING TEMPERATURE
Your engine, in normal use, arrives at a temperature of 200/220 ° C,
this value changes depending on the load and temperature conditions,
humidity, fuel etc. in use.
SPARK PLUG
Use only NGK spark plugs BR8ES or BR9ES depending on the
local temperature. Ensure each time the electrode distance which
must be 0.6-0.7mm. Replace the spark plug every 25 hours of
use.
DEMOLITION AND DISPOSAL
Before proceeding with the demolition of the engine is required
to remove and dispose of according to applicable laws and local
regulations, all the details that can cause damage to the
environment:
PLASTIC ITEMS: Remove and dispose separately
ELEMENTS OF CARBON STEEL: Recycle through the appropriate
collection centers
ELEMENTS IN ALUMINIUM: Recycle through the appropriate
collection centers
LUBRICANTS: Recycle through the appropriate collection centers
EN
17
TABLE OF TIGHTENING TORQUE VALUE
FOR ENGINE BOLTS AND SCREWS
PART
Nm
- SPARK PLUG
20 Nm
- HEAD NUTS
20 Nm
- PULLEY NUTS
40 Nm
- FLYWHEEL NUT
40 Nm
- CARTER SCREWS
8 Nm
- CARBURETOR LOCKING SCREWS
8 Nm
- MANIFOLD LOCKING SCREWS
8 Nm
- SILENCER FIXING BOLTS
15 Nm
- EXHAUST NUTS
15 Nm
- EXHAUST SILENT-BLOCKS LOCKING BOLTS
15 Nm
- ECCENTRICS LOCKING BOLTS
20 Nm
- PULLEY BEARINGS LOCKING BOLTS
20 Nm
- 5mm SCREW OR NUT
6-6.5 Nm
- 6mm SCREW OR NUT
9-10 Nm
- 8mm SCREW OR NUT
25-27 Nm
1 Kgm = 9,81 Nm