Ebay Add-on generator to magneto?

[KCvale]

This is really an informative article!
Reading through all these comments was very helpful for me to make decision to invest in a powerful Genset just like honda 2000 generator.
This generator has loads of amazing features!

Yep, neat little genie.
Mount that in your bike and put a 110V AC motor on the thing ;-}

 

[stroland]

after seeing the add on coil from ebay i mite just beat apart an old transformer and wind it my self.

 

[butterbean]

I just use a 12v tire dynamo wired to a scooter rectifier and a 4A glass fuse going from the rectifier to the junction box under my gas tank.

 

[stroland]

i had one of those on a peddle bike and it had a lot of drag on the bike

 

[butterbean]

That's what the motor is for.

 

[2old2learn]

Almost all systems that produce electrical power for motorized devices extract energy from the system. The best power option for our bikes might be to use a TEG (Thermoelectric Power Generation). It draws its power from the thermal difference between the heat of the motor versus the ambient air temperature. Therefore it does not add to the load demands of the motor.

 

[Deleted member 12676]

I've used rechargeable batteries to power LEDs and had a solar cell on my bike to recharge slowly while the bike was parked in the sun. But the lighting system also had a jack that accepted a plug from an AC adaptor so I could more rapidly charge the batteries from my homes AC.

 

[KCvale]

i had one of those on a peddle bike and it had a lot of drag on the bike

This is simple.
A typical 66cc 2-stroke puts out ~2.75 HP which is 2,050 Watts, both are convertible measurements for Power Generated.

Most AC/DC conversion systems for things like this run in the 30-35% power loss range.
I suggest you let your ride have all the power for moving you and use LI batteries for light.

 

[2old2learn]

KC, Have you experimented with a TEG yet? I've been looking at them as they are now showing up in backpacking stove systems and tea pots for charging cell phones and GPS devices while we cook or boil water. One mounted on our exhaust system can produce significant power using waste heat. Might be worth looking into.

 

[KCvale]

KC, Have you experimented with a TEG yet?

Actually yes, not experimented but I looked into thermal difference electricity generation a couple years back.

I don't have time to find what my research concluded on my web site today, but that tech, which is similar to solar cells, actually will generate DC from your exhaust pipe/head/whatever is really hot for free.

The greater the difference in ambient temp and the hot spot is directly proportional to the power the cells put out.

One odd thing about them is if you apply power to the cells they actually cool what they are attached to.

They aren't very efficient or cheap, but with a few cells on your exhaust header and head you might get enough truly free power for a couple LED's, phone, etc.

Like a solar cell, no engine power loss.