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Haven't posted in a while as I just started using my 14' Mirror craft again. I have a 1977,25HP, electric start Johnson, tiller motor, mod # 25E77S. Under load the engine has started popping out of gear, & sometimes I get a "bang" like it hits an underwater object. I have taken the vertical...

I have a 1977 Johnson, 25Hp, electric start Mod#25E77S. Owned the outboard for about 4yrs & has almost always has starting issues. Turn the key & it would strain to turn over, then crank & start. Now it strains to turn over & won't turn over fast enough to start. Here is what I have done so far...

I have a 1977 25Hp Johnson, model#25E77S, & the prop nut has corroded & cracked. I have seen on line that a replacement is a $25 part. Is their any reason why & can't replace it with a stainless steel castle nut that would take a cotter pin, once I measure the size & thread count. John

I have a 1977 25hp Johnson, Mod#25E77S, that doesn't want to settle into a smooth idle. Before I dig deeper, what is the starting point for the needle valve adjustment. On this carb. the needle valve is on the front of the carb above the fuel bowl. John

My 16' Lund is a semi V hull, with a 30hp e tec. With me & cargo I guess about 750 to 800lbs. The prop on the motor now is a 10.3X11, & I have no tac. Boat is used for salt water fishing in L.I. Sound, & runs fine, I'm not looking for more speed. I guess my question is in general as the pitch...

Have a couple of small pinholes in the bottom of my 16' Lund. Looks like the floation has absorbed saltwater over the years and ate through the aluminum, the holes continue to weep. I know the floor must come up, & the water soaked material removed for the problem to be addressed. In the short...

I fish in a rocky area, launch, & retrieve the boat on gravel. As a result the bottom of my 16' Lund is in tough shape. A few rivets broken off, and three small cracks. To compound the boats problems it is used in saltwater about 100 days a year. Extensive use of 3M 5200 has been a quick fix...

Have a 1977 25Hp Johnson mod#25E77S. Runs fine at slow speed, if I give it the gas all at once the motor revs & we don't get forward motion. My first thought was the shear pin, pulled the prop & all is good. If I give it the gas slow & steady it runs fine, & the boat gets up on plane & gets to...

Where can I find the correct plug gap for a 1977 25HP Johnson mod#25E77S Thanks John

Plan on taking up the floor in my Lund. I see it's secured with aluminum rivets with large heads. Anyone know what these rivets are called, & where I can order them. Thanks John