Honda clone gx200 electric key start

Gx200 wrote:

westend wrote:
I'm going to assume that you aren't adding the starter kit just to start this engine. It's only 5 HP or so and if it starts like typical Honda engines of this size, it isn't needed.
The coil included in the kit is only enough current to keep the engine running and a small bit of extra current to charge the battery. It's not sized or designed to power any auxiliary 12V devices. Any added coils that are powered by the flywheel magnet will be similar in output.

If you attached a series of magnets on the flywheel and surrounded that with a series of wound coils (in effect making a stator/generator), I think you'd be pretty disappointed with the output.

Like Gdetrailer recommends, using a car alternator will net you a few amps but don't expect big power from the combination.

Thanks for your help, I am using this motor on a mini bike build. I know the RV forum isn't for that but you guys have the knowledge I need. I need enough amp to run a led headlight, taillight , signals and to charge battery. I could add a rectifier to have stable 12vdc. All the led lights are about 3amps.

It will take more than a rectifier to make a steady "12V", magneto style alternators will have a output voltage that varies GREATLY with the engine RPM.

At idle it may be as low as 12V but at full throttle it could be 15V or a bit higher, making the lights go from extreme dim at idle to extreme bright at full throttle and even to the point of blowing up the light (too high of a voltage).

You will need to use a rectifier AND a REGULATOR to steady the voltage..

The original coil/rectifier uses the battery as a voltage regulator but if you connect the two together and use a small motorcycle size battery you would easily over charge the battery..

Typically small engines with starters like found in lawn tractors will have a better charging system alternator which typically will supply 10A-15A for battery charging AND some lights..