74-00-00
page 22
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02624
BRP-Rotax
Maintenance Manual
3.12) Measurement values for the ignition unit
The following measurement values can be checked at the appropriate point after
detaching the plug connections.
Generator coil
(on stator)
yellow
-
yellow
0.1 to
0.8
Ω
Generator coil
yellow
-
ground
∞
Charging coil
(on stator)
red
-
ground
3.2 to
4.5
Ω
Trigger coil
green/white
-
blue/yellow 115.0 to 123.0
Ω
Trigger coil new *
(with clamps)
white/yellow
-
blue/yellow 220.0 to 250.0
Ω
Primary ignition coil
connection contact
-
ground
0.1 to 0.4
Ω
Secondary ignition coil
high voltage
-
High v.
6.1 to 6.7 k
Ω
Resistance spark plug connector
4.4 to 6.0 k
Ω
◆
NOTE:
* Fitted in serial production from year 1995.
◆
NOTE:
A check of the complete ignition unit is only possible on an
ignition test bench with an oscilloscope. This is especially
important if failure occurs only intermittently. In this case, send
the complete ignition unit to an authorized overhaul facility.
Summary of Contents for MMH-912 Series
Page 463: ......
