Stiga TRE 0702 - Ignition; Checking The Efficiency Of The Ignition System

Release 00 - 03/2018
pag. 30
Engine TRE 0701-TRE 0702-TRE 0801
Service manual
9. IGNITION
9.1. Checking the efficiency of the ignition
system
1 - Dismount the spark plug (1) and look at the co-
lour on the end of the thread. This can give you a
good idea of the carburation:
- black: mixture too greasy due to clogged air
lter;
- nutbrown: regular carburation.
Replace the spark plug (with one of the same or
equivalent characteristics) if the electrodes (2) are
burnt or if the porcelain is broken or cracked.
FIRE HAZARD:
- do not check the ignition system if the spark
plug is not screwed in place;
-
 always use the specic tool for the
spark test.
2 -
Connect the tester (3) to the spark plug
cap (4) and to earth on the engine (5). Activate
the starter and see in the instrument if the spark
jumps.
3 - If the test has a positive result, clean the electro-
des (2) with compressed air and adjust the distance
to 0.6-0.8 mm. Remount the spark plug and tighten
it to the specied levels.
Unless otherwise required, proceed to verify system
components as indicated in section [
9.2].
0,6 - 0,8 mm
2
1
General information
The ignition system has a ywheel with an electronic coil which supplies high voltage to the spark plug.
See the relevant section [
14] for advice on resolving problems related to the ignition.
The coil and magneto ywheel are accessible by removing the cowl.
Dismount the engine from the machine by following the instructions in section [ 11.1].
3
4
5
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