Rocketman the Rotary 500 - 670 all have enough power for dual bulbs.
But i dont know how you can do the conversion and make it look clean. But why dont you keep the single bulb and just get a really strong bulb thats twice the power of the original stock bulb like the ZENON 130/90watt or 100/80watt
Zenon has a much more intence light and will probably satisfy your lighting needs.
I am also very interested in this post but I am more interested in how to get more wattage to run the dual lights. I have already checked out the rest of the conversion and it should be easy. The CK3 windshield and headlight assy can be mounted with only minor modifcations and it looks like it was done by the factory. I have seen one sled done this way. My concern is not having the power to run the twin bulbs. Yes, the 500 to 670 engines will run the bulbs but they dim down severely when not running at high RPMs. Also, handlebar heater and thumb warmers suffer. I have even though about running an additional, external generator some how to add just a few more watts of power. It could probably be mounted to run of the jackshaft, or maybe some other location. Ahy ideas?
You definately wouldn't want to run a alternator or a gen, as they will rob huge power from your engine.One of those units full fielded can't be turned by hand and in my rough estimates would take apprx. 10-15 hp to turn at times.I've got my thinkin hat on for the stronger mag idea but it's not really needed as most riding is done in the 4500rpm and up range.
We mounted one in a 99 670 toni H edition and it works great but the lighting coil cannot keep up when idleing also thinks it robs from ignition used a pod from a 98 mach1 and epoxed it to look factory
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