Starting Problems with Merc 115HP

Ranger R

Cadet
Joined
Jan 2, 2005
Messages
13
I have a 1995 Mercury 115HP Outboard motor. Only had the batteries replaced since it has been new.<br /> I noticed a few months ago, that afer I had charged the batteries, I would still have problems starting the OB. I replaced the batteries and check all the cables. Everything looked good. Then after being on the lake for a few hours, stopping and fishing, then starting up and running for 15 minutes or so. I noticed the starter would engage the fly-wheel, but not turn the engine over. It would sound like my battery was bad. But is was not...It almost is like the starter is getting hot?? and not turning the engine over, OR maybe the starter selinoid (sp?) is going out...What would be a good test, for either one of those parts? Could the bendix or brushes in the starter getting bad? I have had this problem now for the past 2-3 months. Everytime I go out, I have this problem. I have the convidence that it will start after a couple tries, but one time it might not.....Ruin my fishing trip! <br /><br /> Any idea's? My mechanic told me I have a good starter, but then again, he tested it after one or two starts. It started without a problem...
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Starting Problems with Merc 115HP

Check ALL your cables again and be sure they are clean and tight. Also check the lugs on the ends of the cables. If there is any sign of corrosion on them or the cable seems a little loose in the lug,replace the lug or entire cable. You can test the solenoid by jumping the 2 big wires on it. If all that checks good then it is time to replace or have your starter rebuilt. It could be breaking down after it gets warmed up.
 

Ranger R

Cadet
Joined
Jan 2, 2005
Messages
13
Re: Starting Problems with Merc 115HP

How can you check the solenoid? <br /><br /> My mechanic says my starter is in good shape. But he has only tried starting it when it is cold. So it could still be the starter??
 

downunder1

Recruit
Joined
Dec 6, 2004
Messages
4
Re: Starting Problems with Merc 115HP

Hey Ranger <br />I recently had a problem with my starter doing a similar thing ,the solenoid would pull the gear into mesh but the contacts were not making contact due to corrosion . [my engine had been submerged] I removed the solenoid and washed it in petrol/gasoline pushing the plunger in and out lots . it worked but for a hundred bucks it would probably pay to buy a new one
 
Top