Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
Jim Almquist

Merc won,t start sometimes

8 posts in this topic

A buddy of mine has a 2005 75 hp merc 4 stroke that will every now and then just won,t start and then it will be fine for a day or 2.Spark appears to be good but I think that it is not getting gas.When it runs it runs and trolls great. Could it be a electronic fuel pump that is just intermitently quiting? We also put some seafoam in the gas to be sure it was not a bad batch of gas and checked the fuel filter and cleaned it out but that was very clean. Any help so we can fish more with out worry cause it is not a good feeling to be on Winni with a motor you just can,t trust.

Share this post


Link to post
Share on other sites

Jim, is this happening with the engine cold, warm, or both?

Share this post


Link to post
Share on other sites

It seems to happen when it is cold or has sat a while but not when he has just lunched and it is the first time starting for the day. The other thing that was a little weird was that on sat.in the afternoon when he first started having problems it would start and smoke or steam would come out when it first started.It is a 4 stroke so that why it did not seem right to blow oil that maybe water in gas might steam.

Share this post


Link to post
Share on other sites

Have him check the oil level. Between gas and moisture due to lower operating temps getting in the oil the level could be high. See if that clears anything up.

Share this post


Link to post
Share on other sites

Thanks Frank I will give him a call and have him check.

Share this post


Link to post
Share on other sites

It's my motor. Oil level is right on, and the oil looks fine (no water).

Share this post


Link to post
Share on other sites

It could be anything, Its going to be a process of elimination. So add as much info and details as possible. For now I'm going on the smoke deal.

White smoke is from water, blue smoke is oil, and black smoke is from a rich gas mixture. From your post you said white smoke. If its coming out the exhaust then you have water in the gas or its coming from a bad gasket. Water in the gas will sit in the lowest point in the tank. Thats till you hit some good waves and then the water gets mixed into the gas. Remove the filter, using the squeeze bulb pump gas into a glass container. Examine for water. It might be cloudy or is might show as swirly. If you let it sit the water will separate and lay on the bottom. Another way to look for water in the tank is to crank the tongue jack all the way up. Let the boat sit for a while so the water/gas can separate. Now get a siphon hose to the lowest portion of the tank and siphon into a glass container. Do that and see what you find out.

Share this post


Link to post
Share on other sites

Thanks for getting back to me. It was blue smoke. I thought too that it would be oil. It did that about 4 times after the first time it wouldn't start. The second and third time it wouldn't start,(when it finally did) their was mo smoke at all, it started right up and no smoke at all. Also when it starts it runs fine, no sputtering at all.

The motor has a sediment (sp?) bowl with a float to detect water and I have not seen any water in there but there certainly were enough waves to stir things up! I will check further for water.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Wanderer
      The thumb nail method is tough for those that chew em!   I don't but know people who do.   I haven't used an official split ring pliers but a couple precision sizes have worked well.  This is a cheap set I like to have around.
    • magicstix
      I use forage minnows and other types of jigging spoons also. Usually tipped with minnow head or waxies.
    • noska
      Out of curiosity what do you all think this cost them?  Not including the truck damage.  
    • monger
      i'm thinking of heading up and trying for some tulibees for the smoker- anyone been catching them?      how are the roads out to the flats?  i was thinking of coming on from the east side of the lake- maybe Hunters.
    • Bryan P
      Decided to try trout fishing through the ice for the first time and it was awesome. We were setup in 80ft of water and were catching them 20 ft down jigging a silver kastmaster spoon. It was pretty cool to see how the fish acted with the underwater camera. They were like sharks when they came in. We had probably 30 or more trout come in and check out the bait but only few takers.  Was a lot of fun. Definitly going to explore more trout lakes. Doesn't get much better then fishing on lakes with no houses on them!    Here is a video of the trip with underwater video of the strikes:  https://youtu.be/6JuJhq-50X4