GGP Mountfield SV-150, Workshop Manual, Page: 6 / 35

A) Identification
All the engines have a
serial number stamped
on the right-hand side of
the crankcase; this 9-
figure code identifies:
The serial number must be reported on every
operating sheet in the warranty application and
is fundamental for identifying and ordering spare
parts.
B) Technical data
Piston displacement .................................... 149 cc
Bore ............................................................. 65 mm
Stroke .......................................................... 45 mm
Minimum speed (SLOW) ................ 2200-2500 rpm
Maximum speed (FAST) ................ 2800-3000 rpm
Fuel tank capacity ..................................... 0.8 litres
Oil sump capacity ..................................... 0.6 litres
C) Adjustments
Distance between spark plug
electrodes ............................................. 0.6-0.8 mm
Coil air gap ....................................... 0.25-0.40 mm
D) Summary of tightening torques
The first number refers to the procedure, while the
number in brackets is an internal reference to the
procedure.
6.1 Conveyor nuts (2) ................................ 4-7 Nm
6.2 Starter screw (6) .................................. 4-6 Nm
6.3 Governor bracket screw (7) ................. 6-8 Nm
6.3 Carburettor screws (8) ......................... 6-8 Nm
6.5 Cylinder head screws (34) ............... 20-25 Nm
6.6 Spark plug tightening torque (1) ...... 16-18 Nm
6.8 Muffler nuts (3) ..................................... 6-8 Nm
6.9 Cylinder head screws (4) (6) ............ 20-25 Nm
6.9 Oil drain plug (12) ............................ 18-22 Nm
6.9 Engine screws (23) .......................... 20-28 Nm
E) Expendable materials
Petrol ........................................... lead-free (green)
minimum lead-
free (green) min-
imum 90N.O.
Engine oil - from 5 to 35 ° C ....... SAE 30
from -15 to +5 °C ..... 5W30 - 10W30
from -25 to + 35°C ... synthetic 5W30
- 10W30
Spark plug ................................... GL4RC Torch or
equivalent
Starter cable ................................ Ø 4.5x2400 mm
F) Special equipment
The number refers to the procedure which
describes the servicing operation.
Speed indicator ......................................... 6.4 - 6.5
Tester for spark test ........................................... 6.6
Universal tester................................................... 6.7
01/2005
SV 150
3.1 .
0
TECHNICAL DATA AND SPECIFICATIONS
1 / 2
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