Spark Plugs - MOTO GUZZI 850-T5 Owner's Manual

46
Timing the
left
cylinder (fig. 32)
• turn the lIywheel in the normal sense 01 rota-
tion 01 the engine (antlClodtwisej until the piston
Is at the end of its compressIOn stroke (valves
fully closed).
At this point mark .5. on the t1ywheel (TOG 01
left cylinder) shOuld coincide with mark .. , .. on
the inspection
hole
rim.
• now rolate the flywheel Clockwise until mark
-3 .. (fixed advance) cOincides exactly with marll
.. 1. on the inspection hOle rim. At thiS point, con-
tact points of breaker .B· ( .. B .. fig. 31) shOuld
stan
10
open.
Ignition advance data
- Inllial advance 2-
- Full advance (fixed - automatic) 34
0
Contact breaker points gap: 0.37+ 0.43 mm.
This servicing 01 ignition timing is best calTied out
by one 01 our dealers.
Spark plugs
The type 01
span.:
plugs to be used is
- BoschWBO
- Bosch W B DC
- lodge HlNY.
Spark plug points gap: 0.6 mm.
The spar!< plug is best cleaned with petrol and a
wire brush, using a needle for the Inner part.
In fe-litting the spark plugs, ensure they are
started by hand for • few turns, completing the
operatIOn with the wrench In the tool kit. If not
properly
started, the cylinder head thread may
get stripped. For aU events, the plugs have to be
replaced every 9000 km even if they appear to
be still in good condition