Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 247Get this manual
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POWERHEAD
1 CoverBoltGasketRelief Valve PlateDiaphragmWater DeflectorWasherScrewSpring 10 Poppet Valve 11 Grommet 12 Carrier 13 Washer
Torque Specifications
a 150 lbin(17 Nm)