• GUESTS

    If You  want access  to member only forums on FM, You will need to Sign-in or  Sign-Up now .

    This box will disappear once you are signed in as a member.

  • WE CREATE LONG TERM, MEANINGFUL RELATIONSHIPS IN HERE ... PLEASE JOIN US.

    You know what we all love...

    RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE
    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

  • 0
Sign in to follow this  
friskylizard

Mercury Outboard 175hp help!

Question

friskylizard

I have a '89 mercury 175hp that has been to the mechanic 3 times. When i first start it and run it for about 5 minutes under load its fine but as soon as want to go full throttle it only pulls 3100 rpm for about 30 seconds and then drops power and the engine dies. But, every once and awhile it will go full power and get up on plane like nothing is wrong. confused.gif The fuel line is new, there is spark on all cylinders and i have a new water/fuel filter inline. Has anyone else had this problem??

Share this post


Link to post
Share on other sites

7 answers to this question

Recommended Posts

  • 0
upnorth

I had a problem with gasline bulb on my boat once where if it was either flat or angled the wrong way the little back flow check ball would not allow enough gas through to run full throttle.

Share this post


Link to post
Share on other sites
  • 0
use2bwalleyefanatic

I had the same problem as upnorth.

Share this post


Link to post
Share on other sites
  • 0
marine_man

Everything stated so far is good stuff to check...

Did you stabalize your fuel system before storing it over the winter? It almost sounds like a carb cleaning might be in order...

And if you've had it to the mechanic three times why haven't they figured it out yet?

marine_man

Share this post


Link to post
Share on other sites
  • 0
friskylizard

Thanks for the input.

UpNorth - what did you end up doing?I do have a new bulb/hose. The gas tank was drained for the winter and it does have seafoam in it now. I should say that i took it back to the mechanic and also made him do a "check-run" with me after he pulled the plugs (checked for spark) and pulled the jets. Of course when he was in the boat it got up on plane.

Share this post


Link to post
Share on other sites
  • 0
marine_man

Quote:

The gas tank was drained for the winter


Was the motor run until it died, meaning that the carb bowls were empty? Seafoam helps, but if your carbs are gunked up bad it won't quite do the job.

marine_man

Share this post


Link to post
Share on other sites
  • 0
fchambers

I had the same problem 2 years ago when the local boat dealer put on a new gas hose. They put it on backwards. I didn't realize it at the time but there is an arrow on the hose that points in the direction of the gas flow. It was backwards. I switched it around and the motor worked great.

Share this post


Link to post
Share on other sites
  • 0
upnorth

I just cut the hose so that the bulb, when put on with gas flowing the proper direction was slightly slanted down from the motor.

Share this post


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

Announcements



  • Your Responses - Share & Have Fun :)

    • Borch
      I got out on the Cass Lake chain this weekend with a group of 10.  We found walleyes still hanging out shallow and scattered.   Jigging with shiners or gulp in 4-10 fow got several walleyes in the livewell.  With the heavy wind we also had a good daytime crank bite.  In the evening trolling cranks was productive as well.  Saturday morning I stuck a 43" musky trolling for eyes. Not a great photo but I was fishing by myself and wanted to get it released quickly. Panfish were hard to pin down with them bouncing shallow and then disappearing with each weather change.  With wind gusting to 25+ miles per hour finesse presentations were difficult. Water temps ranged from 53-60 degrees.
    • Knowknot
      I have to agree, always enjoy your videos Curt. Fun to see what is happening even from the southern part of the state...Keep em coming...
    • CigarGuy
      Chad, was that on the West end?  My turn to follow you around 😀. I'll be back up Thursday night!!
    • TomWehler
      Swim 9 am this morning.  No idea on temp but Major Shrinkage.  Coolimoolio! keep on rocken!   T  
    • pikeandchester
      Spent a couple hours on German. Slow fishing, just a couple small sunnies, the boy and I where happy to be out though.  Water temperature ranged from mid 60s to mid 70s. No fresh vegetation and dirty water. Must still be running a bit behind despite the warm weather.
    • Raven77
      Got to get the first fish guts on it yesterday!
    • Raven77
      Interesting. So the sows are still in shallow? We fished 10-24' the past 3 days and have done well with a lot of 14-18" eyes using Lindy rigs and rainbows.  
    • Raven77
      Here's my new boat.  Saw probably 30 Verados in the past 3 days on the east and and west ends.  
    • redlabguy
      We had two fishing tournaments this weekend. Walleyes on Saturday and bass on Sunday. I met the bass winners today and talked to them about their walleye win Saturday. That’s right, they won both!  On Saturday, they entered the walleye tournament but just because they were on the lake to pre-fish for bass. They fished with stick baits in shallow water, looking for bass beds. As shallow as 4’. And dang if they didn’t keep catching walleyes. Big ones, including 2 over 26”. 21 lbs. in all. Apparently, they’re pretty good at finding bass, too. Big $ weekend for them!
    • BRL
      Ugly Saturday on Norwegian Bay. One Pike off of Windsock Island, nothing else much to speak of. Cold and windy but finished off with a beautiful Evening. There were a couple of good eyes caught near the north end, a 27" and a couple in the slots but most boats didn't see much. I saw 2 caught in front of the beach at Life of Riley in a matter of a couple minutes.  Sunday morning we met up with some friends and went out of Tower. Dragging bottom bouncers with minnows in 24-32' produced 11 keepers between the 4 of us, largest about 16" and lots of throw backs. Best luck just off of Priest Island. 4 hours of fishing with everyone except me pulling them in the boat until the last 10 minutes I put two in the livewell. I broke off with 10 minutes to go and was going to quit when everyone said "no, keep going!"  Glad I did cause I finished strong and redeemed myself. Never give up!