Thanks for all the help guys. Apologies for not replying sooner (just started a new job). Have swapped the reflectors after much swearing and they seem to fit but will need to be pointed a bit higher (wish I’d measured their old positions first as suggested..oops). The 400 loom matched regarding connections but were mixed-up in operation, full beam and dipped on at once on one side in the dipped position. Think I’ll stick with the original and do the mod; that way I’ll retain the feed for the sidelight. Another thing I overlooked was the sidelight position. The reflectors project further forward so I will need to either trim back the RH side or reposition the holder further forward. It’s proving a bit of a pain but I’ll get there in the end; hopefully!!
Any other suggestions would be gratefully received and I hope to get back to you sooner this time.
Cheers

Hi, I’m new to the forum which I originally discovered when researching ways to improve my FZS600 (2000) headlights. I’ve aquired a damged FZS400 unit with intact and ‘un-burnt reflectors with a view to swapping for the originals and doing the headlight mod suggested on this site. That way I could retain my sidelight for MOT purposes. Has anyone done this before? I’m happy to heat-up the units to separate them for the swap, but am less confident about the ‘wiring’ part. Any hints and advice would be gratefully received! I also have the FZS400 loom for the unit; could this be used? 

Hi,
I've just joined the club after realising most of the questions I ask Google, regarding my recently purchased 2000 FZS600, are answered by you guys.
Got back into biking last September with the purchase of my Yam. Owned a few previously and still have a partially dismantled 350LC in my Dad's shed (moving it back to mine soon, honest..)
Last (working) bike was a 1150R which I had for a few years, but glad to be back on a Jap bike again (never really got used to the weird controls on the beemer).
Hope to be posting some questions (and hopefully answering a few) soon.