as long as you don't have a lithium battery fitted - a cheap voltmeter at a tenner on the terminals will reveal a lot - my guess is that the reading is something beginning with 11 which will mean your charging system is faulty. Hope it's not too pricey.
Give these chaps a ring - https://www.triumphparts.co.uk/
My guess is that you'll need one of these -
https://www.motoelectrical.co.uk/types/regulators-/improved-universal-mosfet-voltage-regulator-rectifier-sea-doo-can-am-ducati-yamaha-bmw-ski-doo-kawasaki-polaris-triumph-rm30506h/?gclid=CjwKCAiAvaGRBhBlEiwAiY-yMMDhQYCcxLiZiDMfWnTBRSbQnJgLKtniTqQ_V11YmVxVSvHgG9U-CBoCwYMQAvD_BwE
as long as you don't have a lithium battery fitted - a cheap voltmeter at a tenner on the terminals will reveal a lot - my guess is that the reading is something beginning with 11 which will mean your charging system is faulty. Hope it's not too pricey.