Jump to content

    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.

  • 0

Motor slow to star?

Kyle Sandberg


On my boat, I have a 90 HP mercury two stroke. After I launch it, it's hard to get started. Might it be a carb thing or a feul line. BTW, plenty of oil.


Link to comment
Share on other sites

7 answers to this question

Recommended Posts

  • 0

It's a long list, less you help us narrow it down.

I'll make it easy...

Year of engine:

Age of fuel:

Last spark plug change:

Fuel filter change:

Gas Bulb firm and holds pressure?:

Choke operating properly?:

Proper starting sequence used? (firm gas line bulb, wide open choke, no throttle advance, crank @ 5 second intervals with 5 second pauses until engine starts)

Winterized properly for last storage? (if so, how, ie. cylinders fogged, fuel stabalized, etc?)

A few ideas:

Fogging oil can foul plugs: Check, gap, and replace as needed.

Old gas fires hard, even if stabalized. Replace fuel.

Check valves in gas hoses go bad and cause the engine to have to "draw" harder to get fuel, thus making starting difficult. Check and replace.

Fuel filters become plugged and create delivery problems.

Carbs gum up with varnish and cause needles to stick, especially after being tilted in a transport position for a period of time.

If none of these K.I.S.S. items solve or seem to be your problem, then you will need to dig into it a little further and look into weak ignition components, carb rebuild or tuning, etc etc.

Link to comment
Share on other sites

  • 0

Sorry, it's a 2002 2 stroke.

Fuel is brand new. No leftover.

Spark plug- don't know. I'll check

Gas bulb seems to hold pressure. Haven't really checked. Mabye a little loss

NO choke as far as I can tell but there is a thing on the throtle that is for cold starts. Gets the RPMs up wihtout putting it in gear.

Winterized with all the bells and wistles.

Will try some stuff and see what happens.

Link to comment
Share on other sites

  • 0

There is either a choke or a primer, and this is what you need to use when the engine is cold to get it to "pop off" quicker.

The release on the throttle allows you to advance the throttle without being in gear, for instance, if the engine were to flood.

Link to comment
Share on other sites

  • 0

I have a 125 with the same problem , it seems that when the motor is trimmed up ,it messes with the float.try trimming down the motor all the way when starting it seemed to help on mine.

Link to comment
Share on other sites

  • 0

I've got a 99 115 Merc 2 stroke that is always seemed to be hard to start and keep running after I pull it out of storage.

Finally learned to keep holding the key down and then once it got running I keep tickling it with a little choke for about a minute. Seems to run fine after that.

Link to comment
Share on other sites

  • 0
  • 'we have more fun' FishingMN Creators

Hard cold start: Make sure you prime/choke and if so that its working. Like what was suggested you might have to tickle it a while till it warms up.

Link to comment
Share on other sites

This topic is now closed to further replies.

  • Your Responses - Share & Have Fun :)

    • JerkinLips
      27 inches of ice on Burntside Lake and a lot of snow cover, even before getting 4 inches more Tuesday night.  I am sticking with my May 14th guess.
    • smurfy
      ???? little early for that isnt it????   nice fish though!!!!!!1
    • Rick G
      Made it out for while on Monday.  Bite was crazy good, had fish suspended right below the ice.  
    • LakeofthewoodsMN
      On the south end... Lake of the Woods ice fishing is still going strong.  Ice trails and ice roads are doing well.  Some anglers report slush when going off of the roads and creating their own trails.  Good idea to work through your favorite resort and outfitter this time of year.  Ice fishing is still readily available if you want to get out. Both day houses and sleeper houses are out and can be through March 31st.  The forecast ahead has high 30's during the day and teens at night.  Work through a resort or outfitter as they monitor conditions closely on their ice roads. The walleye and sauger season extends through April 14 and the pike season never closes.  Perch, eelpout, tullibees and crappies are also in season. A good week of fishing for some, mixed for others.  Walleyes seem to be moving this time of year.  If you are on them, it is normally good.  The combo of the jigging line and deadstick is working well.  One day they want it moving, the other, the deadstick is the ticket.   Huge pike continue to be active with good reports this week.  Setting up in 5 - 15 feet of water is the depth most anglers are targeting. On the Rainy River...   The morning / evening bite has been best for walleye anglers.  This time of year, extra caution is needed if fishing around moving water.     No open water fishing to report as of yet.  On the Rainy River, ice can go out quickly, only Mother Nature knows.  We will keep you posted. Remember, on Four Mile Bay and the Rainy River, catch and release only for walleyes and saugers through April 14th.  The big lake is still open for harvesting walleyes and saugers through April 14th.  Up at the NW Angle... Good walleye and pike reports by anglers this week up at the Angle.   Like the south end, a plain hook or small glow jig with a live minnow has been working well.  Walleyes, saugers, jumbo perch, big pike and eelpout in the mix. Crappies continue being caught on the Ontario side of the lake amongst the islands.  We recommend using a guide as ice conditions amongst the islands with current and neck down areas, etc.   For those looking to access the NW Angle while avoiding customs, snowmobiling across the lake on the marked trails are in good shape or utilizing the Lake of the Woods Passenger (bombardier) Service keeps you in Minnesota.  During the open water months, boating across or charter boat service is available keeps you out of Canada.  
    • Hookmaster
      Drove out again on Tonka yesterday late afternoon and fished sundown. Six other vehicles on the bay. Ice in great shape. Lost a lot of snow since last Wednesday. Snow melt starting to drain down the access so that'll go first. My hot spot was  still hot but not as many bigger crappie. Had to coax them a little to bite. Still got a 12 (inhaled the jigging spoon), a couple 11s and several 9-10. They were 80-90 feet away from where I caught them last week in 20-22' instead of 18-20' maybe because of the bright sun. Gotta love LiveScope for helping to find them. At 4:24 pm (spring solstice) I thought the fish might start jumping out of the holes or at least go on a ravenous bite, but nothing changed. When all that bit were little bluegill I went looking for the crappie and didn't find them. I did find 2 schools of sunfish. One in 15' that had 7" fish and one in 18' on a ridge between shoreline and a hump that separates 2 deeper holes. Those were 8" average.
    • Wanderer
      I rarely buy live bait in the summer also, with the exception of leeches.  But all of it needs to be kept cool and oxygenated so the bait coolers do prove their value.   You might want to shop around for bait prices though.  Maybe out of the 7 county metro you could call ahead.  I found decoy suckers for $3 each over the winter.
    • gimruis
      Part of my issue with live bait is that it generally results in a higher hooking mortality than artificial does, especially in the heat of summer.  95% of what I catch is intended to be released, so in order to maximize that, it helps to avoid using live bait.  I'm not saying you can't accidentally kill a fish with artificial that is deep hooked, because you certainly can.  But as a general rule, they are more often hooked in the mouth with artificial.   The cost is also ridiculous for some live bait too.  Crappie minnows and waxies aren't bad, but when you start talking shiners, jumbo leeches, and decoy suckers...it gets out of hand quickly.  The last time I bought a big decoy sucker for muskie fishing years ago, they were $14 each.  15 bucks for a dozen shiners and half of them are dead by the time you get to the lake?  Take my left arm too why don't ya.
    • Bloatlord
      End of April is my guess for lakes along the I90 corridor.
    • Rick
      A weekly list of news briefs about fish, wildlife, and habitat management.Discuss below - to view set the hook here.
    • leech~~
      Great.  Have to swing by soon to see what they have, then over to Petti Bros for some jerky and sticks!  
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.