+1 on mezo, nevertheless, most wear will be in the solid bushes, pins/sleeves and holes in the metal tongues getting oval,
there is only one proper bearing in the whole system #27, rest is quite shameful engineering on behalf of YamahaTBH.
a good machinist could make all the pins and bushing to measure to make a linkage with little or no slop, not rocket science
my 2 cents
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