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exhaust leak, no clue where to start?1972 65hp

chad26

New member
hey guys i have a 1972 65hp johnson, when i bought it it had no spark, put a whole ignition system on it harness and all,it crank up for a bit died and started backfireing out the exhaust. thanks to daviet i got it running and we took it out.it did alright,but the the exhaust is comeing out my prop,and not my ports at all! it does alright in the water, but it runs great on muffs? i think its from my exhaust not being able to breathe. but i dont even now how to check the exhaust on a outboard? any thoughts or help would be greatly appreciated thanks chad
 
Re: exhaust leak, no clue where to start?

Not absolutely sure on a 1972, but most of the later OMC's have through the prop exhaust. If so, your engine should have a large opening around the hub, where the exhaust escapes. If you have this, your engine is probably acting normally. The two ports on the back will occasionally spit a little water, and some fumes, but the exhaust is supposed to go out the prop.
 
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