Home › Forum › Ask A Member › any harm in back flushing ’67 Johnson 100 hp? › Re: any harm in back flushing ’67 Johnson 100 hp?
September 27, 2015 at 5:05 pm
#24704
Yeah, you can’t expect it to work if you throw the parts overboard. As for the back flushing you propose, it won’t hurt anything if you do it the way you said. Probably won’t accomplish anything either. You could throw a screaming cat through the water passages on that motor, so it is unlikely they are plugged up.