So the stocker headlamp is rated at 60/55 watt.

Can I replace with an 100/80 watt, or will I experience problems?

 

I put a bulb with that spec in a 1982 Kawasaki GPZ750 back when. The heat during 80w running was noticeable and the heat when running 100w was intense. I didn't melt the socket, but I've heard of this happening. Also, sometimes the stock wiring and/or fusing won't be compatible at high beam, so check that out. I wasn't impressed with the high beam angle. When the low beam was set ideally, the high beam tended to point too high. The low beam was pretty darned good, however. I ended up using a single auxilary fog style lamp with a good beam design on a separate switch for really outback and black night driving. I moved that auxilary light to other motorcycles, as it worked really well.

 

I was worried more about over-drawing my hyper-active stator, which (now that I think of it) is producing almost double the minimum of VAC from operation. My new $100 regulator rectifier is shunting most of it to heat. Maybe a high-volt lamp will increase visibility and take some of the load off the RR?

I'll give it a try. If I'm over-driving the wiring I'll switch back down.

 

So I just went and got a Phillips kind of mid-grade bulb and called it "quits."

Maybe if I get a case of the squirrellies this winter I'll drop in a 100/80 watter or I'll throw in an HID conversion kit. They're practically giving the danged things away.

 

I'm running a Piaa 4K.. 110/100
No probs at all.. Have one in the Harley too