Moto...there's one of each.
The dip beam is a H3 - this is as you say a bulb with a connector spade on a short length of cable.
The Haynes manuhelll is wrong if it shows a H1 ( bulb with spade directly on rear ) as a dip beam.
You should be able to remove the rubber boot over the back of the H3 to remove the bulb...no need to take off the nose cone..

The wire connector from the H3 bulb can be a bit difficult to reconnect cos the loom connector does have a tendency to jump behind the headlight fitting if you let it go. Be gentle but keep hold of it and it's a cinch to replace without removing the cowling!

Or is that what the actress said to the bishop :o

Just checked my bulbs & they are Halfords Xenon !

As I've said before PIAA do a brighter lamp (bulb) for the diped beam.

Regards,

G

My sister's bicycle has a better lamp than my duke.
I'd consider a candle latern as an upgrade, but would fret about stickly mot testers:
"Those cans sound very loud. Your main beam flickers all over the place, and your fork seals are weeping oil."
"That's not oil, it's wax from my dipped beam."