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http://www.ultralightnews.ca/hirth-engines.htm Page 6 of 31
The Ultralight News
Figure 1.1.2-1 (Dual Bing Carburation System)
1.3Description of the Ignition System
The ignition system (Figure 1.3-1, 1.3-2) consists of a armature plate, a magneto, E-Box(s), ignition coils and
the ignition cables with the required number of spark plug leads. The ignition system is completely electronic
and possesses an E-PROM for a freely programmable ignition curve however, this can only be carried out by
the manufacturer. Alternating Current (AC) power for electrical components during running and charging of
the battery is provided. The engine is available with a single or dual ignition system installed.
An electronic stator plate is secured on the ignition side with the crankcase. A magneto is fixed on the
crankshaft and encloses the armature plate. The fan housing covers the ignition system?s magnetic wheel.
The electronic E-box and ignition coils are mounted on a fixture plate secured to the crankcase as shown in
figure 1.3.3.
Figure 1.3-1 (Single PVL ignition)
Figure 1.1.3-2 (Dual PVL ignition)
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