1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 63Get this manual
Start motor and check cooling system operation ill
Check shift operationCheck electrical system for stray spark sources
Check all adjustmentsSee Synchronization and AdjustmentCheck idle rpm in forward gearCheck full throttle rpm and proper operation of rpm limiter packCorrect any problems foundClean entire motorComplete paperwork Registration Dealer customer record Owner's temporary identification card
Weather Altitude and Engine Performance
The horsepower ratings of all motors are those that would be obtained under standard conditionsHowever, weather and altitude will affect the performance of any outboard motorSome factors that will decrease the output of motor are: Low barometric pressure High temperatu res High humidity High altitude