what starters are available for 80cc gassers? is there a battery set up that would allow a dynatron to spin 'em without killing it in short time? the starter that is.

Have a few starters here made from Honda Accord starters. Work well on any big gas engine.

locoworks, here is a site that list Miller R/C Products which produces high torque starter accessories. My Dynatron on 24 volts will spin a G-62 but havn't tried it on an 80. Probably would though since it is consuming 4 times the power that it does on 12 volts.
http://www.thercsource.com/misc.html

I'm just curious. Why do you want to use a starter on an 80 cc engine. Most large 80 cc engines have electronic ignition which fires at idle near 0 degrees BTDC. This allows easy starting with no kick back. At least that's the experience that I've had with my Brison 5.8 and 6.4. I don't see my friends using a starter on their ZDZ-80s.

Ken

thanks big bird. i have a friend with a zdz 120 inline tripple and also a supertigre converted to gas. they both need the starter to get em going, hot or cold. also, a mate had a zdz 40, another starting nightmare. and finally, a mate has a macminnarelli twin, he made a starter for that out of a bike starter motor cos that was a workout to get that going. maybe my zdz80 boxer will start like an OS 10. don't want to do myself an injury just to get flying. i just want to cover the bases.

locoworks, I understand the problem.

When things get serious, I drag out a serious starter. I converted this one from a Nippon Denso starter that was used on a Mitsubisi (sp) V6. The conversion consisted of removing the gear which engages the flywheel, taking the front end (the end next to the engine) apart and removing the spring which retracts the the gear then reassembling the front end. Next I drilled a half inch hole in the Miller R/C Products 3" drive cone to match the output shaft. Then a set screw hole (10-32) was drilled in the side of the cone. Next, several washers were put over the output shaft, the shaft pulled forward, and the cone installed. They shoulder against the output bearing on the starter and the back of the cone. If you don't pull the shaft forward then it will not be engaged. The Campbells soup can was used as a guard to keep the socket head set screw from knocking the c**p out of my hand.

Over all this starter is better for large engines than the Dynatron on 24 volts because it has far more torque, due to the gear box, at much lower speed. Of course it works on 12 volts. I haven't tried it but feel that it would turn a 240cc engine over without even breathing hard.

Ken

Or you could go this route

starter

Roger,
Who makes that starter ??.

A company in Texas, I think its Brookside machine. I'll have to check in my shop tomorow. You have to send them your engine and they custom make and fit to your engine.

They make starters from .40 size to at least 240cc. Not cheap though.

aerografixs, that looks sweet, but it is extra onboard weight, and i bet the batteries are a small lump of sub C 's ? nice to just flick a switch though. i'd rather a handheld lump so as not to be restricted to a one model starter.

It sure is a lot of onboard weight, but on the right plane, it would be sweet

Everything has its place. The starter weighs in at 28 oz.
Since the engine is quite light for its size, and most application would need the extra weight in the front anyway, why not a starter.
Besides, it does add to safety.
Don't forget, I will have hydraulic brakes to keep thing still while it starts.