Read here Scott,
https://yamahadtclub.proboards.com/search/results?captcha_id=captcha_search&what_at_least_one=Mx+175+barrels&who_only_made_by=0&display_as=0&search=Search
Fuel injection seems to fair better than carbs regards stale fuel , , my moneys on the fuel pump, Squirt some easy start in the air box wen turning over, it should offer,
Ok" ,,its improrted from the EU. SO NO DUTY is due,,,,,go to GOV.UK. sign in or make an account, fill in the N.O.V.A form,, just make up a figure paid,,etc,, you will be issued a number, then you need a dating cert,, vjmc,,, or Aircooled RD FORUM,,,
i suspect a corroded connection ,, or break in wire ,,continuity test All wires ,,you can squirt some easy start in the airbox, and it should fire, or offer, this will let you know it is fuel related problem ,
Has the bike been reg in this country before ? or is it a Usa import, [recent] Records before 1974 wern"t Logged to the new V5 system, it was local registration offices before then,,,