I Just bought a 1987 30sh Yahama serial number 101500 It has a code number 6j8s. I need to know if this motor has a chargeing system on it and how to wire it up. It has 2 blue wire's comeing out from under the fly wheel and are not connected to anything. I would also like to know what prop to use on a 1448 flat bottom boat. I carry about 600 Pounds and would like all the top speed I can get. Not to concernd with getting out of the hole in a hurry but do'nt wnat to ruin the engine. I'm sorty new at all this thanks for the help.<br /> akantmc3 davidw7@nexband.com