Baureihe
2 625 01
2 625 02
2 625 02 i
Service Manual
SOLO
KLEINMOTOREN
GMBH
edition 4 dated 26.02.2018
Seite 7
4.4 Crankshaft
The Crankshaft can be disassembled only by the manufacturer.
The main bearings at the drive side or the ignition side (roller bearings) can be
replaced. To conduct this, the inner rings must be grinded carefully on one spot until
only 0.3 mm of wall thickness is left. Then they can be cracked by using a chisel.
After that they can be slipped off the shaft.
•
Check true running on a centering device. The eccentricity at the bearings should
not exceed 0.04 mm. If the eccentricity is more the crankshaft can be adjusted by
the manufacturer.
•
Check axial play at the con-rod bearings.
The play must be between 0.35 und 0.5 mm.
4.5 Ignition system
4.5.1 Engines 2625 01 and 2625 02
Following ignition systems are used:
•
ISKRA
– Magneto Ignition with generator 12 V, 70 W for the engine 2 625
01 up to serial-No. 12.
•
DUCATI - Magneto Ignition with generator 12 V, 150 W for the engine 2
625 02 from serial-No. 1 and for the engine 2 625 01 from serial-No. 13.
Both ignition systems have two independent ignition circuits.
4.5.1.1 Specialties of the Iskra ignition system
This ignition system has a stator which can be adjusted on the crankcase.
The proper ignition timing is adjusted if the stator is turned as far as
possible against the rotational direction of the engine (anti clockwise).
The ignition timing can only be checked with a strobe light while the engine
is running in idle.
4.5.1.2 Specialties of the Ducati ignition system
The ignition timing is fixed and cannot be adjusted. The proper position of
the external pick-ups for the two circuits stand for the ignition timing.
The ignition timing (22 ° BTDC) can be checked with the strobe light while
the engine is running in idle. Therefore there are marks on the pick-ups
and the rotor which have to match. Then the correct angle can be checked
statically.
