Also remember you'll need to change the relay to get the correct flash rate.
Good point! Plus alot of the "LED compatible" upgrade Relays will happily flash a combination of both LED and incandescent Bulbs, at the correct rate.
(ie: if you upgraded front indicators to LED, however still had the original Yamaha bulb type indications on the back).
The relay I picked up for this, the Pins inside the plastic connector were in the wrong positions - I had to move the pins around.
(even though the advert stated the Relay was plug and play on Yamaha motorcycles
)!