Honda BF50 (5HP), BF5A Outboard Motors Shop Manual 2014, Page 122Get this manual
Item Valve springs Camshaft Free length Cam height IN EX Journal 0.0(at oi pan) Carburetor Mainjet
Standard 29.6 mm (1.165 in) 27.700 mm (1 .0905 in) 27.747 mm (1 .0924 in) 13.984 mm (0.5506 in) #75 #70 (engine SN BADE-2070820later) 9.0-11 .0 mm (0.350.43 in)112 turns out718 turns out (engine SN BAOE-2070820later) 0.70.8 mm (0.0280.03 in)
Service limit 28.1 mm (1 .106 in) 27.45 mm (1 .081 in) 27.50 mm (1 .083 in) 13.95 mm (0.549 in)
Float height Pi lot screw opening
Spark plug Ignition coil
Gap Resistance
(+)stopl (-)ground (+)secondaryl (-)stop (+)groundl (-)stop
12.925.1 2.45.6 0
(+)stopl (-)secondary (+)secondaryl (-)ground (+)groundl (-)secondary
73.5-166.5k 54-126k 0
Air gap (at flywhee l)
0.20.5 mm (0.0080.020 in)
Charge coil (Optional) Oil pump
Resistance