1975 Evinrude 2HP Model 2502 Full Factory Service Manual, Page 10Get this manual
CLEARANCE CHART
Power head Piston ring gap .015 max- .005 minPiston ringgroove 0040 max- .0020 minCylinder and piston .0055 max- .0043 minCrankshaft Upper Needle bearing
Iower Needle bearing Connecting rod Piston end .0011 max- .0004 minCrankshaft end Needle bearing Lower unit Driveshaft and bushing in gear case .0028 max- .0010 minGearcase head and propeller shaft .0022 max- .0007 min Propeller on shaft 0057 max- .0032 minGearcase bushing to propeller shaft .0022 max- .0007 min
TORQUE CHART
Power head Flywheel nut 2225 foot-pounds Connecting rod screws 6066 inch-pounds Cylinder head screws 6080 inch-pounds Manifold to crankcase screws 6080 inch -pounds Bearing housing to cylinder screws 6080 inch -pounds Spark plug 17-120-1 foot-pounds Lower unit Pull at propeller shaft to tilt up lower unit 1114 lbs