Release 00 - 02/2008
Engine WBE 0701-WBE 0704
pag. 9
Service manual
. TECHNICAL DATA AND SPECIFICATIONS
.4. Expendable materials
Petrol
Unleaded (green)
minimum 90N.O.
Engine oil
- from 5 to 35 °C
- from -15 to +5 °C
- from -25 to + 35°C
SAE 30
5W30-10W30
Synthetic 5W30-10W30
Spark plug
RC12YC (Champion)
or equivalent
Starter rope
ø 3,5x2500 mm
.5. Use limits
The following table gives the use limits of certain
components subject to wear, after which the com-
ponent must be replaced.
Compression when new 8,0:1 (01)/8,0:1
Min. 4 bar
Minimum inlet valve stem diameter
5,32 mm
Minimum exhaust valve stem diameter
5,27 mm
Minimum inlet valve head rim thickness
0,5 mm
Minimum exhaust valve head rim thi-
ckness
0,5 mm
Valve seat depth
1,8 mm
Minimum valve spring length
28,5 mm
Maximum gap between ends of cylin-
der rings
1 mm
Max. axial gap for compression rings
0,15 mm
Minimum gudgeon pin diameter
12,95 mm
Max. gudgeon pin-piston seat diame-
ter
13,05 mm
Max. connec-
ting rod diame-
ter
gudgeon pin side
13,07 mm
crank side
26,07 mm
3.1. Identification
Every motor is marked with a serial number on the
base and applied on the canopy; this serial number
is composed with 9 numeric characters and can
identify:
• - • • • - • • • • •
The serial number must be reported on every ope-
rating sheet in the warranty application and is fun-
damental for identifying and ordering spare parts.
.2. Technical data
WBE 0701 WBE 0704
Displacement
160 cc
200 cc
Bore
65 mm
70 mm
Stroke
48 mm
51 mm
Minimum speed (SLOW)
1800 (±150) r.p.m.
Maximum speed (FAST)
2900 (±100) r.p.m.
Fuel tank capacity
1,0 litres
Oil sump capacity
0,55 litres
Dry weight
11,75 kg
12,80 kg
.. Adjustments
Distance between spark plug
electrodes
0,6 - 0,8 mm
Coil air gap
0,25 - 0,40 mm
Inlet valve clearance
0,10 - 0,15 mm
Exhaust valve clearance
0,15 - 0,20 mm
Year of
manufacture
Daily progressive
number
Date
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