How do you replace a Trim indicator?

My indicator is out and I want to replace it, any suggestions?
Thanks

21 scout w/150 yam 4str
16’ Alum. w/40 yam

Which motor?

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Yamaha f150

21 scout w/150 yam 4str
16’ Alum. w/40 yam

the little plastic piece that attaches to the pivot tube probably broke. take a close look with the engine trimmed up.