1978 Evinrude 115 hp

wvtrucker

Recruit
Joined
Jul 24, 2007
Messages
1
Hello, I was reading through posts found a lot of threads on this engine but not exactly the same problem but close i can put muffs on it and will idle fine and rev up fine but as soon as it touches lake will not idle rev or anything will start but have to choke every time the engine has set for approx 2 years i bought it last week and havent got it rite changed plugs really new to boating id appreaciate any help thx
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 1978 Evinrude 115 hp

That's a very typical scenario of dirty carbs. Once you put the motor in the water you have backpressure in the exhaust. Anytime you get a new-to-you carb'd outboard you want to clean the carbs, replace the water pump (complete) and change the gear oil. Keep in mind the carbs deliver oil as well as gas. Pistons really like having oil and will revolt if they don't get it.

Also make darn sure you use only Champion spark plugs.
 
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