Im kinda thinkin; of building a Hostetler Cessna 206 plane and I called him and told him i fly at 8000' MSL - he told me to put a Zenoah G62 in it, now i read here about puting on a CH electronic iginition and then i read about CH syncrospark or something like that and then the G62 comes with magneto ignition?? so what do i use? im very confused, what would be the best at my altitude? and what is the most fuss free and what is the best for hand starting.

thanks

Hi Brian,

I have a G62 I'll put on a Extra 300SX 25%, I fly at 5,000 MSL and soon at 8,000 MSL and need some nose weight.

The engine comes factory with magneto ignition; I'd run at bench and see poor transition onto low and high RPM and too much shake at low, so I'd decided to put a CH ignition on it.

It will arrives soon and I expect better transition, and low shake.

Plus are start with a finger (some guys write it) and add low weight.

Take a look at: http://www.ch-ignitions.com

tkg is a great guy and is here in rcuniverse, so he can help you.

Don't forget there are other great engines too for all aplications.

Hope help you

There are two types of ignition for gas engines.
An electronic ignition uses a rechargable battery to drive a small box from which the spark plug wires emanate.
A magneto ignition has a fixed magnet in the flywheel that generates a pulse of electricity when it passes by a coil.

The electronic ignition is better for hand starting. It automatically retards the spark at low rpm. Magneto ignitions have fixed spark advance making the liklihood of kickback higher. Also, magneto ignition requires a pretty fast flip to generate enough electricity for a hot spark. Electronic ignitions can be hand started very easily.

The only drawback to the electronic system is probably the cost. And you must carry a separate battery to power it (typically a 4.8 or 6.0 volt NiCD like a rx pack). CH is a very popular manufacturer of electronic ignitions.

To take ignition one step further, there are two types of electronic ignition. One uses an electronic automated advance mechanism such as the CH syncrospark. The other uses a mechanical advance through a rod from the carb likkage to a ring arond the prop shaft housing. Both types work well and both types are superior to a magneto ignition.

Get in touch with RCIGN1. He's supposed to have some really wonderful things with a G-62 and electronic ignition systems. He may or may not be marketing the set up, but if you're dead set on a G-62, he would be a good person to ask questions about the engine and systems.

thanks so much, this is very helpful, im also looking into the Fuji BT-50SB 46.5cc engine, i think this will work?? i notice this put out more horsepower then the G62 and has a Capacitive Discharge Ignition - exactly what is this? because it doesnt say on the tower page about needing any additional batteries unless of course they expect you to just know

the G-62 ignition is also CDI. the mag on these engines provides the voltage needed to charge the ignition capacitor.

please don't believe HP claims, especially when it comes from tower's "tech" department. i highly doubt the fuji has anywhere near the power of the zenoah and it fer damn sure don't have zenoah's record of reliability.


dave

G-62 swing a Mejzlik 22x10 at 7000 RPM here at 5,000 and it is not totally break in yet.

What prop move Fuji?

Roberto