I have Johnson Ocean Runner 150 Vintage 1994. It won't start and when I crank it, fuel flows out of the front of the carburetors ( all six). With starting fluid it pops and runs for a very short time. The mechanic is stumped. We disassembled one carb and it looked clean. reassembled it and tried to crank again and it flowed fuel out the mouth just like before. The fuel from the carb seems to have a lot of oil in it.
The mechanic feels that it may the the primer which is operated by the key and the red lever on the front of the engine. When you push in the little button on the air valve on the primer, there is no pressure.
Mod No.: J150EXEOM