Triumph’s servicing schedule for my bike, and I guess any of the fuel injected bikes, has the fuel filter to be replaced every time the engine gets a proper service. (20,000 miles on my 1200 twin.)
I hadn’t done mine since it’s first dealer service, so when I finally got around to replacing it I thought I’d check inside and see what a 55.000 mile old filter looks like…
Hmm, pretty filthy, so I think I’ve changed my mind and not leave it as long next time.