1975 Evinrude 40 HP Outboards Service Manual, PN 5093, Page 9Get this manual
SPECIFICATIONS Model Numbers 40502standard length (15" transom) 405035" longer (20" transom) 40552standard length (15" transom) 405535" longer (20" transom) NOTE: The recommended full power operating range for your outboard motor is from 40005000 R.P.MIn order to get the best performance from your outboard the upper end of this range, from 45005000 R.P.M is the engine speed to use in selecting the proper propellerThe R.P.Mshould be measured with your expected average load in the boatHorsepower (B.LAcertified) 40 hp at 4500 rpm Full throttle operating range 4000 to 5000 rpm Tank test with test wheel 4500 rpm Part Number 378566 Engine type cyl cycle, alternate firing Bore and stroke 3-3 16" bore 2-3 4" stroke Piston displacement 43 .9 cubic inches Propeller options blade, 10-3 4" diax 11" pitch blade, 10-38" diax 11-1 2" pitch blade, 10-1 2" diax 12" pitch
Speed control
On steering handleManual StartKnob on steering bracket or remote control- Electric StartSynchronized throttle and spark Forward, neutral, and reverse Model 40502128 lbsModel 40503131 lbsModel 40552137 lbsModel 40553140 lbs(Fuel tank weight 11 pounds net) gallons amp flywheel alternator