1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 61Get this manual

1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 61

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Tune-Up Procedure 1 Visually inspect motor for leaks, missing or loose parts, or other obvious defects2 Compression CheckProper compression is essential for good engine performanceAn engine with low o