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  1. Texasmark

    20hp 4 stroke only runs with choke on.

    Don't forget a good dose of 100# compressed air with your cleaning and a little fine wire in the hollow tubes and Berryman's Chem tool for carbs and such. Little fine wire: Remove the insulation from a piece of old lamp cord.. cut off a strand. Is Copper and soft but will work.
  2. Texasmark

    Starts and runs at idle great on muffs or in a bucket - won't start at all in the lake or ocean.

    Exhaust relief ports at the rear below the powerhead should have solved that problem. Don't do carburetors is a clue to a potential problem. Do you have the engine on a boat transom (vertical) or toss it in the trunk (horizontal)? How frequently do you take it to water to run, not at home on...
  3. Texasmark

    125hp ELPTO 2+2 miss/hesitation at high speeds

    Could be sticking. due to non-use or old fuel....metal to metal, lubrication in the fuel...I don't see a wear component on check valves. You'd think the 3-4 filter would keep crud out of the line. On linkage all mine open fully....parallel. On the transition zone I think it's more of how you...
  4. Texasmark

    125hp ELPTO 2+2 miss/hesitation at high speeds

    Would you explain that sir? Is the 2000 the same engine as the 2002? My serv manual seems to think so.....like 1996 was the big change and nothing till the series was terminated in 2004-5 time line. I use CDMs connected directly to the Stators....no switchbox.
  5. Texasmark

    boats-from-usa site?

    Hey Scotty, you mean they are mining our conversations about how we play with our boats?????? Geez all the stories I've told on here about when I was a kid, like one for instance, trying to learn to water ski behind an 18 hp Rude??????
  6. Texasmark

    volvo penta trim/tilt goes down but not up

    The DC motor operates by reversing polarity across it to cause it to change direction. You have 2 relays interconnected such that selecting and energizing one, say blue for blue sky which is UP has 12v on one wire of the motor and ground on the other. This circuit requires both relays (DPDT)...
  7. Texasmark

    Starts , runs great then wont start after shut off

    What is your starting procedure hot?
  8. Texasmark

    Primer ball not holding pressure

    Back in the old days we had the Mercury diamond shaped squeeze bulb that the big guns on here said is what you needed to use and have the arrow pointing up......(probably to get the internal check valve on the tank side to close so that when you squeeze it fuel would go toward the engine). Fast...
  9. Texasmark

    Question on 30 year old boat

    You were right on the tab above the prop. Turn the rear of it into the problem area...if it goes left, looking from the rear, turn the rear of the tab to the left....from what you are saying, you may need to go full left which is probably about 30 degrees from where it is. The trim tab has a...
  10. Texasmark

    Water splashing over transom

    Several folks nailed the problem. Looking at the picture the Anti Ventilation is the black line just above the prop. It stops at the leading edge of the mid section. The next black line above it in the picture is the water deflection plate that sticks out roughly an inch "ahead" of the mid...
  11. Texasmark

    Best prop

    Maybe an inch or two higher. What I don't see is a planing surface on the boat. The hull is narrow first of all and second the bottom doesn't really have a flat surface. Get on the www and ask to see pictues of aluminum flat bottom John boats and look at that hull preferable from the rear...
  12. Texasmark

    Prop rubber rubbing

    How about you just taking a picture of the prop shaft and LU casting and then pictures of the old and new prop in the front view.....the view of that part of the prop that is closest to the LU....any hardware, washers and what all, include in the pics and explain when used. Another couple...
  13. Texasmark

    1957 evinrude fastwin 18hp ventilation problems.

    That's a good response and I agree not just on the not hacking comment, but if it's rated for 75 the 18 will be a dog.....get another engine like a 50 or so......with a 20" leg.
  14. Texasmark

    Lower unit or shift linkage issue?

    Something in your linkage must have come loose. The lower unit is pretty husky and freak accidents aren't common. As far as linkage, you aren't going to be in reverse and the boat moving forward. You may "think" you are by looking at your help controls but you aren't. Shift linkage is a...
  15. Texasmark

    1968 Mercury 100hp Water from upper exhaust openings

    When the engine is running and the boat isn't moving, the depth of the water at the engine is "back pressure" on the engine when it doesn't need any. The/those hole(s) at the rear of the mid section, near the top are called "Exhaust Relief Ports" and are there to relieve exhaust pressure...
  16. Texasmark

    Prop rubber rubbing

    You must have forgotten to install your tapered "thrust" meaning what the thrust caused by the propeller turning pushes against... "washer", rather than your lower unit casting.
  17. Texasmark

    1957 evinrude fastwin 18hp ventilation problems.

    Pay attention what Flying Scott said. I agree with him. That flat plate just above the prop should be visible from the front of the boat......get up front with it on the trailer, in the centerline look towards the rear of the boat and start stooping down. At some point you can see clearly all...
  18. Texasmark

    2016 Mercury Optimax 150 Pro XS Reviews?

    WOW. I though I might upgrade from carbs to injected but not for that price. Thanks for the tip!
  19. Texasmark

    Mercury ELPTO 115 burnt wires????

    Fist off a moot point. The 2+2 is a 2 cycle (stroke) engine with 4 cylinders. With speeds below around 1800 RPM there isn't enough fuel pressure to supply the bottom 2 cylinders with enough fuel to ignite and produce power. Above that "kick in point" all 4 (the other 2 kick in and) produce...
  20. Texasmark

    Fuel supply problems

    How about the check valve on the inlet line to the primer bulb. If it malfunctioned such that it didn't open it could collapse the bulb with the fuel pump sucking on the line. Have you tried putting things back together and see if it all magically works now. If so, with the troubleshooting...
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