headlight wattage

[tarkus4]

Is it possible to use a 6 volt 35 watt halogen bulb in place of the standard 6 volt sealed beam? Will this throw the electrical system out of balance and would the battery be able to handle it? The halogen bulb is a 35 watt high and low beam.

 

[Adam-NLV]

Is it possible to use a 6 volt 35 watt halogen bulb in place of the standard 6 volt sealed beam? Will this throw the electrical system out of balance and would the battery be able to handle it? The halogen bulb is a 35 watt high and low beam.

I've heard of a 12v Halogen but not a 6v Hal. The quick answer is no.

The ct70 electrical magneto provides voltage that's just enough to maintain this bike's battery charge, lights and ignition circuit. Adding a Halogen bulb to this bikes e-system would throw off pretty much everything. This bike's design uses no V reg but incorporates resistance (impedance) through the battery and bulb wattage to regulate voltage that the magneto produces.

I know that a Halogen uses less power than a incandescent bulb but it initially needs a higher voltage/power to get it lit and to maintain the illuminance , which the old school ct70 just can't produce.

There are members that have run a Hal HL but to the best of my knowledge they used a 12v system with a voltage regulator.

 

[tarkus4]

Thank you Adam-NLV for the quick answer. So since that's not going to work I have a couple of other questions. Can I use a higher wattage incandescent bulb, say a 35 35 watt and can I install a SLA battery with a larger amp hr?

 

[Adam-NLV]

The higher wattage bulb can be used as can a SLA battery with a higher aH ratting....But

A little history first... Since this bike uses no V reg, the way the bike's is designed is to vary the wattage of the bulbs (front and back) and come up with the right combination that charges the battery and maintains good illumination. If you are blowing HL bulbs, the rule was to use a higher wattage one. If the battery's not getting charged properly, use less wattage and so on.

Now by using a (brighter) higher wattage HL and a higher aH battery the trade off would be that you will have to ride it longer to fully charge the battery up. So you see, it's a little bit of give n take. A trickle charge would help keep the battery charged to avoid running it for long periods but it's a good idea to have a brighter HL.