IAME Parilla Norswift 60cc User manual

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MAN - 099 - EN

1
FEEDING
Fuel mixture 98 RON and 3% oil (33:1).
Our experience dictates use of oils, such as:
-WLADOIL K 2T;
-ELF HTX 909;
-ELF HTX 976;
-LEXOIL 996.
ENGINE MOUNT PREPARATION
In case you are not provided with an engine mount previously prepared with holes
at the distances as prescribed in the figure, drill 4 holes Ø8.25÷8.5mm
(Ø13.5÷14mm counterbore) in the engine mount as described in the drawing.
NOTE - All dimensions are in millimeters.

2
ELECTRICAL PLANT
The engine is equipped with an analogical ignition with fixed advance, normally set
to 1.1mm (min0.8 max1.4mm) before TDC.
1. SWITCH ON / OFF
2. COIL CABLE
3. COIL
4. IGNITION
WARNING ON THE EXHAUST PLANT
Check that the muffler mounting springs are well hooked. In case of breaking,
replace the broken spring. Do not use the engine if the springs are not correctly
installed, as the muffler may vibrate more than the limit and could break.
It is recommended to remove the rear cup of the muffler every 10/15 hours and
check that the counter-cup holes are not clogged with deposits.
WARNING ON THE INLET SILENCER
Make sure that the inlet silencer is mounted with the inlet hole facing upwards
and that is not blocked in any way. Make sure the inlet silencer clamp on the
carburetor is adequately tighten.
Periodically clean internally the intake silencer.

3
CADETTI CLASS
TILLOTSON HW-47A CARBURETTOR SETTING
The recommended base setup of the carburetor screws, after running-in, is as
follows:
▪L (from totally closed position, open): 1 turn+15’–1turn + 30’
▪H (from totally closed position, open): 30’- 40’
According to different conditions, such as altitude and ambient temperature, it may
be necessary to adjust the carburetor in order to optimize the engine performance.
- Never lean excessively the mixture: risk of overheating and seizing.
- Never tighten the screws H and L forcefully, the screws seats may result damaged
and the carburetor unrepairable.
- Carburetor adjustment must be performed with warmed up engine.
( I ) IDLE
SPEED SCREW
( H )HIGH SPEED
FUEL MIXTURE
( L ) LOW SPEED
FUEL MIXTURE

4
MINI CLASS
TILLOTSON HW-34B CARBURETTOR SETTING
The recommended base setup of the carburetor screws, after running-in, is as
follows:
▪L (from totally closed position, open): 1 turn+30’–1turn+40’
▪H (from totally closed position, open): 40’–50’
According to different conditions, such as altitude and ambient temperature, it may
be necessary to adjust the carburetor in order to optimize the engine performance.
- Never lean excessively the mixture: risk of overheating and seizing.
- Never tighten the screws H and L forcefully, the screws seats may result damaged
and the carburetor unrepairable.
- Carburetor adjustment must be performed with warmed up engine.
( I ) IDLE
SPEED SCREW
( H )HIGH SPEED
FUEL MIXTURE
( L ) LOW SPEED
FUEL MIXTURE

5
CORRECT INSTALLATION OF THE IGNITION COIL
ONTO THE CRANKCASE (BOTH CLASSES)
In the case the ignition coil has been removed from the engine, the correct
installation must be performed in order to guarantee the proper ignition
functioning.
-Take a 0.3mm wedge, gently shape it as an arc to approx. copy the diameter
of the flywheel. Better when the wedge is in magnetic steel, so it is kept in
place by the magnets.
-Place the ignition onto the crankcase as shown in the picture here below.
-Install both the M4 screws with the washers, and screw without tightening. The
ignition has still to remain free to slide up and down.
-Take the 3mm Allen key and
engage the screw on the top
-Push firmly the coil toward the
center of the flywheel, using your
fingers. Check that the coil bends
the wedge around the flywheel.
-While you are pushing the coil,
tighten the screw on the top.
-Keeping pushing on the coil,
tighten also the screw on the
bottom.
-Before releasing the load, come
back on the screw on the top and
finish tightening. (The nominal
torque to be applied is 3Nm for
both the screws, manual
tightening is sufficient)
-Gently remove the wedge by
pulling it while rotating the
flywheel
-Finally, check the gap with the
tip of a good wedge (not bent),
in the tightest position of both the
polar expansions it must be:
-0.25mm GO
-0.35mm NO GO

6
MAIN COMPONENTS’PARAMETERS AND ESTIMATED
LIFETIME
CYLINDER / PISTON PAIRING
The piston must be replaced within certain intervals, expressed in consumed liters
of mixture. Intervals may vary according to the use the engine, ex: professional
(top performance required) or hobby (top durability).
IAME recommends replacing the piston every 100 liters of use, or earlier, if the
cylinder/piston tolerance exceeds 0.11mm.
If the marking on the piston crown indicates:
-a GREEN dot or with the letter V: the dimension indicated on the piston crown
corresponds at dimension of the liner
-a RED dot or by letter R: add 0.01mm to the measurement marked on the piston
crown to match the liner.
The prescribed cylinder/piston clearance, when a brand new piston is mounted,
is 0.07mm.
The actual diameter of the piston can be checked at 15mm from the base,
perpendicular to the piston pin.
Moreover, the clearance between the tips of the piston ring (installed into the
cylinder) must be between 0.10 and 0.20mm. The clearance can be checked
with a feeler gauge after placing the ring straight into the cylinder.

7
CON ROD SMALL END ROLLER CAGE
Replacement is recommended after about 100 liters of use.
CRANKSHAFT, CON ROD BIG END CAGE, CRANK PIN, WASHERS
Replacement is recommended after 200 liters of use.
MAIN ROLLER BEARINGS
Replacement is recommended after 200 liters of use.
CON ROD
Replacement is recommended after 400 liters of use
The con rod must be replaced when the roundness of the big end hole exceeds
0.01mm. This value is given by the difference between the diameter measured at
the positions indicated below "A" and "B".

8
TECHNICAL DATA ENGINE SUMMARY TABLE
DESCRIPTION
DATA
NOTES
FUEL MIXTURE / FUEL
Min 3% OF OIL
98 RON
Oil CIK
homologated
TIMING ADVANCE
1.1mm (0.8÷1.4)mm from
TDC
See fiche for how
to read
CORRECT MEASURE TIPS PISTON RING
0.10 ÷ 0.20 mm
Installed in the
cylinder
SPARKPLUG TYPE USE IN STANDARD
WEATHER CONDITIONS
NGK BR 9 EG
SPARKPLUG TYPE USE IN VERY COLD
WEATHER CONDITIONS
NGK BR 8 EG
SPARKPLUG TYPE USE IN HOT
WEATHER CONDITIONS
NGK BR 10 EG