1971 Johnson 125HP outboards Service Manual, Page 11Get this manual
2-4 NOTE Retorque cylinder head screws (1B-20 ftlbs and spark plugs after motor has been run and has reached operating temperature, and has cooled comfor,t able to touchLower unit Pull at propeller shaft to overcome reverse lock 640 to 710 lbsST ANDARD SCREWS FtLbsInLbsFt-LbsInLbsSize Size 5-7 No6 60-BO 7-10 14" 10-12 516" 120-140 NoB 15-22 2-3 1B-20 No10 220-240 3B" 25-35 2B-30 3-4 340-360 No12 35-40 716" These Torque Values apply unless otherwise specified LUBRICATION CHART
LUBRICATION POINT
1Stern Bracket Tilt Lock See Figure 2-7
LUBRICANT OMC Type "A" OMC Type "A" OMC Type "A" 60 days 60 days 60 days
FREQUENCY (PERIOD OF OPERATION) FRESH WATER #SALT WATER 30 days 30 days 30 days
2Carburetor Linkage See Figure 2-B 3Cover Latches, Front and Rear See Figure 2-4 4Choke and Low Speed Adjustment Linkage See Figure 2-9 5Gearcase See Figure 2-10