A small arduino circuit that would monitor the rectifier output voltage (~40v) and use a servo to actuate the throttle to automatically compensate for load.

Just goes to show you the incredible time and effort taken to design generators, and then they have to make them look like a package, and then generally reliable for the average not intelligent person to neglect. Cheers man this is an incredible feat.

Motorcycle voltage regulators usually work by shorting phases together when there is no 12V load so this is why your engine was loaded. If you want to go that way you may try using a so called series regulator that acts as a line switch instead but they are very expensive.

you can get fiberglass based muffler packing material that should be a lot safer to use than steel wool. if the timing ever gets off and you backfire and shoot flames into that muffler, you could have a pretty high temp fire on your hands

Put a small 12V battery between the DC-DC converter and inverter. It acts as a capacitor and will both smooth the load on the motor and the voltage out to the inverter

Johnny takes big boy toys to a new level 😂

Wow that muffler sounds really nice! I mean, it's literally bigger than the engine so it has a big advantage but it totally transformed it

That knocking at the end got me laughing lol.

The motorcycle voltage regulator used in your setup is a shunt type which basically shorted the output coil when there is no load. You need a series type voltage regular, for example, SH775A from Shindengen. You also need to connect a battery or a large electrolytic capacitor at the output to work properly.

I recommend adding a capacitor bank (something like 4700 micro farads and 50 volts at least) after the 3 phase rectifier because the output of a rectifier bridge isn't pure DC. It has a ripple, and that may be what is messing with the rest of the circuit. Also, you could get a cheaper DC-DC buck converter that can handle that kind of load (in case you blow it up).

Great job as always. 👏 I have an idea:

Really fancy would be using the generator BLDC motor as a starter as well.

Most motorcyle regulators work by just shorting the input (3 phase). So they are always drawing full load. Its inefficient, but simple and reliable.

The motorcycle "rectifier" is also a regulator utilizing the "shunt-regulator" principle. It shortens the generator coils outputs with thyristors when the voltage exceeds 14V at DC. This is a huge waste of energy, but within a MC engine, the stator coils are oil-cooled and so this cheap works and is used mostly.

Sad too see it didn't work out. It was the coolest gen set I've seen, rotary (10A), which was half compressor half engine sounded weird but work good. As always love your work

Good work; you clearly put a LOT of work into this. It's about time someone took one of these model engines and actually put it to a practical use.

That's really cool!

Cant wait for a V10, it must sound amazing

I really enjoyed your video, and it shows just how much work goes into making the generators that can be purchased ready to go. That said, I don't think you were too far off. Regulators as far as I'm aware always need smoothing prior to being fed into anything... I feel that was your problem, as the output converter probably hit a LV state, shut off (VERY briefly) the voltage skyrocketed, and in doing so would have damaged it's own circuitry, and if the output was somehow shorted to the input (MOSFETs probably), would have then blown your 12v inverter.

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