Yamaha 115-225 HP Outboards Service Manual, Page 19Get this manual
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I Iu-I SPEC
cm hr Imp ozl hr US ozl hr cm hr Imp ozl hr US ozl hr
REED VALVE: Valve stopper height Warpage limit
mm 6.2-6.8 (in) (0.2440.268) mm (in) 0.9 (0.035)