No concern about battery, alternator output 165W ;load is lamp 130,tail 5,poilet 5, high beam 2, clocks,8, duty cycle flashers tail etc 5, ignition 5 total =160w so 5w spare
Therfore battery lasts infinity!
Forget the pointy head stuff these oid 750s have a power system way ahead for there time, they can still put most modern bikes to shame. This stuff is my business and Honda way way over engineered the generating system.
Yep I know the starter takes a wack but I never have a problem and you dont drive round at night all the time either, or do you
??
Heat is all radiant so is reflected forward, no melted headlamps don't worry, you can see from my pics the wires are still O.K the headlamp runs cool to the touch at the back.
To answer concerns about the battery think of it this way, the battery does act as a buffer between drain and charge and if your gonna run a big bulb you will give the system a work out but it's nothing it can't deal with.
And if like on the latter bikes 550 etc wher Mr Honda thought time to pair down the safety factor of the charging system you find that for YOUR situation where you need the llights for X amount of time YOUR battery is going flat well that simply means you have quite cheaply found out that your power generating sysyem does not fit YOUR needs and you will have to upgrade the gen system or accept the old smaller origanal 55w bulb.
But! you only spent $6 extra on a 130w bulb however you have relayed out the lighting circ anyway so you get free 100% more light, bigger sparks in the ignition, brighter tail/stop lamp, cars dipping for you, no concern over age of the current wiring..... its a no brainer really. I would urge you to try this if you want fantastic lighting but remember its 2 steps relays first, bigger bulbs if you want later.
Oh yes wiring diagram is on the link in my first post, good luck.
Also the 750 is on conventioal bulbs all round, I have other bikes on LEDs but I do not like the narrow spread of light in the 750s indicators and rear lamp, they would be OK in the clocks maybe, but the 750 dont need the LEDs to provide spare capacity it has it anyway. My Yammaha GTS 1000 93 seems to have a less capable gen system than the 750, there is no downside to fitting the relays and this allows you to
try big bulbs, what you do from that point is up to your needs but don't try fitting big bulbs wthout relays.
Garham