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  1. J

    doel fins

    My uncle gave me some old hydrofoils off his volvo penta outdrive to put on my Merc and luckily the holes that were already in my leg line up. I have a 16ft aluminum and a 16 pitch prop, do you think I'd gain anything by installing them? I'm probably going to give them a shot tomorrow anyways...
  2. J

    Prop for 1975 50hp Merc

    Hi,<br />I have a 1975 Merc 500 on a very light (I can easily pick up the front or back) aluminum boat and am trying to decide on a prop. I'm currently using a 13 pitch which I have two of and they're great for getting out of the hole and wakeboarding behind, but the engine is screaming at...
  3. J

    1947 Evinrude Sportwin

    Hi,<br />I'm restoring a 3.3 1947 SporTwin that has a siezed leg. No one seems to have a replacement leg so I have diesel in this one to soak off the rust in case that's the cause. Is there a better way to unsieze this thing. It would be a shame to give up on this motor now. It runs great...
  4. J

    '72 Merc 500 rebuild candidate or anchor?

    I used this Merc for 15 minutes before it made a horrible sound and siezed up solid. That was about a year ago and at that time I deemed it dead, but with time I started to wonder about it and decided to check it out today. It looks like it is indeed a dud. The other pistons look good and move...
  5. J

    Water pressure in '96 Merc 115

    What psi range should a '96 115 have in the cooling system. Its at 5 psi at WOT right now.<br />Eric
  6. J

    Merc 500 lack of power in 3 and 4

    I was trying to figure out why my merc 500 is weak this year so I removed the sparks plug wires 1 at a time and found theres hardly any rpm loss when #3 and #4 have the wires off. Those two cylinders do have spark as I painfully discovered (my hand is still numb). The carbs are both spotless...
  7. J

    tach on '75 merc 500

    Hi,<br />Is there a way to temporarily hook up a automotive tach to the three prong plug on my merc's control box? I just need to do some troubleshooting and don't want to go buy an expensive merc tach.<br />Eric
  8. J

    The dreaded 1968 Johnson 9.5

    My friend has what in my opinion is the worst outboard ever built and has convinced me to fix it for him. So after breaking many bolts and spending a lot of time with vice grips and oxy acetylene I manged to remove the siezed leg. The only problem is that the water pipe came out with the leg...
  9. J

    Salt or crud in flush passage

    Hi,<br />I went to flush a 9.8 after using it and it's not one I use much or have ever flushed so it has that white stuff caked into the flush passage. I got what I could reach out using a piece of wire but it seems to go all the way up to the powerhead, is there something that eats through the...
  10. J

    1989 9.9 four stroke Yamaha serial #

    I bought a 9.9 four stroke from the marine recyclers and fixed it with a leg and carb from my blown 1985. The motor has 1989 written on it and the serial # plate has been removed from the transom bracket, is there another place to look for the serial? Most motors have it stamped on the...
  11. J

    Point Gap on a '73 7.5hp

    Hi,<br />What's the point gap on a 1973 Merc 75 (7.5)?<br />I know what you're all going to tell me, but I don't need a manual, I'm selling the thing as soon as I get it back to running well.<br />Thanks,<br />Eric
  12. J

    Small merc year

    Hi,<br />What year did Merc go from the aluminum cowling to the plastic cowling on small motors? What year did they change leg styles? And what year did they change carbs? What years did they have the red plastic cover over the points? What years did they have the green ignition parts under...
  13. J

    1968 50hp merc

    I was out on the lake last weekend and I found a stump at full speed. Must've been more of a tree actually because there was 25 feet of water. Anyways it siezed my leg, so I changed that but now my engine will start up but its acting like the timing is very off. Would the seized leg have...
  14. J

    Merc 9.8hp cooling issues

    I recently bought 3 9.8hp Mercs, the oldest being a 1978 and the newest a 1982. They were all sitting in a yard for the last 5 years and seem to all have the same problem; they blow exhaust out the pisser when running. I took the exhaust cover off one of them and the gasket looks shot. Is...
  15. J

    yamaha 9.9 4-stroke flywheel

    Hi, <br />Is the flywheel on a 1989 yamaha 4-stroke only held down by the top flywheel nut and tension? I just hooked up the three bolt puller and decided to check here before I start so I don't end up breaking bolts.<br />Thanks,<br />Eric
  16. J

    Yammy 9.9 2-Stroke powerhead

    Hi. I was offered a 1992 2-stroke 9.9 Yamaha with a siezed powerhead for $60 and I wanted to check on the availability of powerheads before I go ahead and get it. I figure the leg is worth at least $50 so I 'm pretty safe buying the motor. I only have experience with four stroke Yammy's, which...
  17. J

    Fuel type for 1970's Merc 500's

    I have a few (one less every time I go out on the lake it seems :p ) running merc 500's from the early 70's and I've always used regular car gas with 50:1 in it. A while ago someone told me I should be runing better fuel because these motors are used to leaded fuel. Is this true? Should I be...
  18. J

    Controls for 1989 Yamaha 4stroke 9.9

    I have a 1989 Yamaha 9.9 4 stroke Elec Start that I made out of a few motors earlier this year. I've been using it as a kicker on my 16' aluminum. I took off the control arm and replaced the throttle/shift cables with 12 foot cables and extended the kill switch wires. (pretty inventive eh?)...
  19. J

    Hummingbird LCR 400 ID

    The wire for the reciever on my LCR 400 ID isn't long enough to reach the back of the boat, so I cut it and patched in another 5 feet. Are there any adjustments to be done after this? Was it a dumb thing to do or will it work? Do I need to use sheilded wire? I just used maring grade...
  20. J

    Merc 500EL...M

    Is it possible to combine the merc electric start and manual start to make a electric start with the top recoil? It looks like it and I'm actually most of the way done experimenting with it, I swapped over the starter, rectifier, coils(to give it thunderbolt ignition), choke solonoid, and...
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