lighting

[TOO FAST]

Think about it some more, I'm sure you will see why changing the wheel circumference doesn't change the generator speed at all, or a VERY small amount.

(Unless you are talking about a smaller friction drive wheel on the actual generator, then you are correct)

I disagree - 1 rpm is 1 rpm so if the wheel is 10 inch diameter
the circ is about 31 inches. If you change to a 20 inche the circ
is about 63 inches. That means the generator wheel turns twice
as far in the same revolution = faster gen speed.
If you mean the same road speed then you are right because the
small wheel would travel twice as many rpm as the large one and
the gen wheel speed would be the same

 

[skid20]

You are going to be running that bicycle generator faster than it was design to go anyway because its going faster than you could pedal it on a bike.

 

[88s10Durango]

I think your going about this wrong , simply put , you need a high amperage supply source for any given light , the bycicle generator is small and won`t supply enough amperage to run a proper 35-55 watt light >> voltage X Amperage = Watts ,,
A single 55 watt light is going to need a supply of 4.58 AMPS AT 12 volts ,, at 2 lights you would need 9.16 amp supply , your best option would be to mount a 1 wire GM alternator , a small 20 amp battery and run the alternator off the engine or off the rear live axle of your kart through a pulley ,, Bill

 

[troll11911]

I have a question, I have one engine that has a seperate positive wire from the stator that ran lights, with no battery or alternator, they obviously got brighter with more rpms, and dimmer with less.....so why could I not do the same thing with my new motor, solder in a wire where the plug wire attaches and run lights off that?

 

[88s10Durango]

not sure on that , but if the stators are the same mayby swap them , Bill

 

[Kaptain Krunch]

I have a question, I have one engine that has a seperate positive wire from the stator that ran lights, with no battery or alternator, they obviously got brighter with more rpms, and dimmer with less.....so why could I not do the same thing with my new motor, solder in a wire where the plug wire attaches and run lights off that?

You mean where the spark plug wire attaches? if you wire in a light there then, whenever you turn on the lights you will either blow the bulb (that wire puts out short bursts of over 15k volts to the spark plug), or it will act as a killswitch.

 

[squat251]

i would just use an alternator (Chevy, not ford, im not going into specific reasons why, but i will if i need to.) most of the clutches i have, (they are all old, so i dont know if they still do this) but they have a sprocket, and a small pulley, run the chain to your drive and the pulley to your alternator, and if you use a hazard light for the front, you wont even need to have a battery, it will just be brighter when your moving (in fact, it will only be on while your moving)

 

[EagleTalons]

Why not just throw a stator under the fly?

http://willardssmallengines.com/alternator_chart.html

They don't supply much, but some leds would run.

 

[brosef]

getting back to the hillbilly rigging.. couldnt you just split the power from the kills switch/ignition

 

[88s10Durango]

Kill switch ignition shouldn`t have power ,, the kill switch just grounds out the ignition coil to a ground source ,, power only comes from a battery source or a stator in the flywheel .. Bill

 

[motor_head]

I would have thought that at any one speed, that generator would spin the same RPM regardless of wheel size.

this is true
if you are going 10mph with a 20in wheel
and 10mph with a 30in
the larger wheel does less rpm to go the same speed
the small wheel will travel 62.8in in one rotation
the big wheel will travel 94.2in in one rotation
meaning that the outside edge of different sized wheel travel the same distance at any given speed