Originally Posted by RdrMtn
I have never cleaned the downtube screen. My bike has at least 9000 miles on it, maybe up to 11K depending on how much it was ridden before me.
Then it sounds like it is due.
This is the service manual's routine maintenance, (the next page is the competition maintenance).
All I can say its recommended
for every other oil change (change oil AND filter q 600 miles or 6 months which ever comes sooner!
(the same time you check your fuel strainer screen)