I did the dual-headlight mod last night. Instead of buying a kit from ebay, I just followed the instructions posted by jdubbya and a few others (thanks guys). It was super easy and I did it with stuff I already had so it was FREE!

Anyhow, this mod seems like a no-brainer. It's such an obvious safety advantage. You can see and be seen much better this way. Which begs the question: Why do you think Yamaha doesn't set it up to work this way from the factory? Does anyone know?

Beacause Confucius say...

Man who tell one too many light bulb jokes soon burn out.

*rimshot. lol

There are a lot of things I don't understand about scooter/motorcycle/car manufacturers. This, the throttle restriction, and Subaru's retarded switch to a 2.5 L engine instead of using the 2.0 in the WRX.

I wondered this too. Honda made the Ruckus dual headlights which was very nice. But I don't understand the single light setup of the zuma.

Hope the 09's have dual headlights...

nope the 09 is the same one high one low

Because they want to give Zuma owners something to tinker with?

I should probably do a high beam mod on mine.

When the "high" switch is on, all it does is move the low beam at a higher angle. Four rectifying diodes should do the trick.

Running both headlights tends to put a drain on the battery, if yamaha wired them together ppl would complain about their batteries running out (there are some ppl that would leave the ignition on without the engine running). The battery on a scooter is very small (all it really needs to do is run the starter) in order to keep weight down. So they could wire them together and include a larger battery but then ppl would complain about it weighing down their scoot and increasing the price of the scoot. Yamaha will get complaints for just about anything so they have to make decisions, like running only one light at a time, because that really is the best way to go about it. Now that's not to say wiring both together is a bad thing, only yamaha doesn't want to hear you complain about your battery not being good enough so learn to use your kickstarter for when your battery dies

Someone said its because the two headlights being on at once, would make drivers think they are seeing a car way off in the distance. Is this mod even street legal? I rarely ride at night, so the headlight mod to me is not needed anyways.

the rucks use the same size battery as zumas so I don't see why your battery dying would be a problem. When I turn my ignition to on my headlights don't come one and when the scooter is running the lights run off the motor(dont they?)

flap, I don't think the headlight mod would be illegal based on the ruckus's lights.

It normally wouldn't be a problem for the battery if you were riding it often and keeping a good charge in the battery but there are some ppl who don't ride them a lot and only go short distances, stop, run the starter, stop, run the starter. So there are ppl who could easily run the battery down. And yeah sorry i forgot the headlights do turn off with the ignition, my bad! But some ppls riding styles could wear down the battery pretty good. But anyway Yamaha's stance is that it has to do with the battery lol

I contacted yamaha directly and asked them this question (thumbs up for the responce within a day)

and their reason is:



stock altternator lights up both lights fine for me

The headlights do not run off the battery.