Honda Outboards BF40A/BF50A Service Manual, Page 285Get this manual
BF40A-BF50A
5TROUBLESHOOTING
aENGINE
Hard Starting
IL1_._C_h_e_c_k_t_he_fu_e_I_le,v_e_1i_n_t_he_ta_n_k_I Sufficient fuel in the tank No fuel in the tank
-',-1A_d_d_fu_e_I._ _
Check for collapsed or pitched fuel line Check for clogged fuel tank breather hole: Close the tank and open the vent knob, listen for hiss Check for air leaks past primer bulb Squeeze the primer bulb and be sure that the fuel is reaching the carburetor Check for clogged fuel filter, fuel tubes and connector Check the fuel pump
2Loosen the carburetor drain screw and check whether fuel reached the carburetor'-
Not reaching the carburetor
Reaching the carburetor
3Remove the spark plugs and check for wet or fouled electrodeI-