Rotax 914 series Maintenance Manual

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 kΩ
Resistance spark plug connector 4.4 to 6.0 kΩ
◆ 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.

Rotax 914 series Specifications

General

Bore	79.5 mm
Stroke	61 mm
Compression Ratio	9.0:1
Cooling System	Liquid-cooled cylinder heads, air-cooled cylinders
Redline	5800 rpm
Engine Type	4-cylinder, 4-stroke
Fuel Type	Avgas 100LL
Oil System	Dry sump
Fuel System	fuel injection
TBO (Time Between Overhauls)	2000 hours
Displacement	1.211 liters (1211 cc)
Power Output	84.6 kW (115 hp) at 5, 800 rpm