i have a 1988 220 laser on a 1986 v-king. the motor is acting up and i've been told that its probally the ecu. the one on motor doesn't have a part number on it, but on the merc part list it shows 14632A2. is there a simular ecu i can use? i have access to one off a 1994 150 efi 824003A10 and a 150 promax 824003A13.