Here's the specs. There is a Webra dealer in Canada. Maybe someone could check the price there.

WEBRA SPARK II UNIVERSAL ignition system







order no.:
4313
order no.:
4312
The Webra SPARK II is an electronic ignition system consisting of a micro-processor controlled electronic circuit and a thyristor high-voltage ignition system with voltage converter and high-tension ignition coil. An electronic control circuit automates the timing of the ignition spark.

The SPARK II ignition system is designed for use in single-cylinder two-stroke model motors. The entire ignition box is fitted inside a light alloy housing, protecting all the electronic components and suppressing transmitted RF effects. The space-saving shape of the housing makes it easy to install neatly.

The SPARK II ignition system helps the motor to idle reliably at a lower speed, and at the same time the precisely timed ignition spark improves the gas exchange and torque. A rotary potentiometer can be used to optimise the ignition advance. The SPARK II ignition system also features a receiver lead for connection to a vacant channel, enabling the pilot to optimise the advance timing from the RC system transmitter - even while the model is flying.

The SPARK II - UNIVERSAL ignition system can be fitted to motors designed for methanol as well as petrol power plants.

Motors which were originally designed for methanol operation (glowplug types) should not be operated on petrol, as their bearings and compression ratio are not suitable for this fuel. However, using a spark ignition system in a methanol-burner guarantees precise ignition with controlled ignition advance. This increases motor torque, and helps to enhance overall performance (reduced nitromethane requirement).

The ignition pulse is provided by a magnet which is installed in the propeller driver or cooling fan. The ignition pulse is picked up by a Hall sensor.

The system is designed for use with a power supply consisting of standard commercially available battery cells such as LiPo, NiCd, NiMH, etc; we recommend two LiPo cells. An electronic ON / OFF switch is also available as an accessory: Powerswitch Z-Nicad, Article No. 20436, for NiCd batteries, and Powerswitch Z-LiPo, Order No. 20437, for LiPo batteries.


input voltage 3,6 - 8V
output voltage approx. 24 kV
idle current drain ca. 10mA
current drain approx. 250mA at 5V and 10.000 U/min
max. rotation speed ca. 20.000 U/min
max. advance ca. 30°
dimmension length 33mm, diameter 40 - 44mm
weight 100g