I found these # on the carb cover and dont know if they are the model # trying to find out what year my force motor is to order a repair manual the # are uscg app no 162.042/10/0
that is exatcly where the where the # are 906x90c does that mean it is a 90?
also the coils are blue and the fuel pump looks round. I want to get it ready for the season plugs wires change the lower unit oil any other sugestions?