Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 101Get this manual
CHARGINGSTARTING SYSTEM
Installation
1Secure starter to engine with boltsUse Left top bolt to attach BLACK NEGATIVE () battery cableTorque top attaching bolts to 23 lb-ft (31 Nm)Torque bottom attaching bolt to 21 lb-ft (28.5 Nm)2Secure BLACK cable (with YELLOW sleeve) to POSITIVE (+) terminal on starterTorque nut to 60 lb-in (7 Nm)
aTop Bolts [Torque to 23 lb-ft (31 Nm)]Bottom Bolt [Torque to 21 lb-ft (28.5 Nm)]BLACK Cable (with YELLOW sleeve)Nut [Torque to 60 lb-in (7 Nm)]