late 90s evinrude 115

dave80

Recruit
Joined
Mar 13, 2007
Messages
1
Ive got a late 90s model evinrude 115. It will run good for a bit at first and then it wants to act up. It idles fine but when I throttle down it acts like it wants to stall...then it revs back up....and repeats this process. Also, the bulb doesnt stay tight. Cant even get it to plane. I was hoping to find the problem so I wouldnt have to put it in the shop. Besides the bulb and fuel lines, what should i check out. Any help would be greatly appreciated. This is a horrible time of year to have boat problems...fish are biting. Thanks.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: late 90s evinrude 115

The primer bulb will not stay firm once the engine is running. That's normal. The engine apparently is not running on all cylinders. A spark check and compression check is in order. Pull the plugs and check them.
 

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: late 90s evinrude 115

Old fuel, bad fuel pump, plugged carbs, stuck anti-siphon valve...check it all..a restriction can cause holes in pistons....Bad deal if not dealt with.
 
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