Search results

  1. scout-j-m

    Yamaha 8hp (model 8SF, 1989) with water in cylinders

    A friend was given (or maybe "borrowed") a 1989 Yamaha 8hp, model 8SF, from a coworker of his for his teenage son to use on his jon boat. I told them to bring it over and I'd help them go over it and see if its a runner after sitting in the guys shop for years. I think the story was the guy my...
  2. scout-j-m

    Ignition Compatibility on 150hp Blackmax

    My dad bought a 1992 Procraft 185 F&S a couple years back that came with a 92 model 150HP Blackmax, SN# 0D145256. I posted some about it on here a while back but long story short it had catastrophic faiure on the port side cylinders I think. He since found and bought a 1989 model of the same...
  3. scout-j-m

    1994 Mercury 25 - Low Compression Bottom Cylinder

    A few weeks back I bought a Mercury (Tracker Branded) 25 hp long shaft. Ad said it's a 1994 model, which seems accurate but I'm not 100% sure how to cross reference the serial number (0G092027) to the year. I do know that the serial range means it is a chrome lined bore and not mercosil, per my...
  4. scout-j-m

    Mercury 150 Black Max ~1992 year model

    My dad recently purchased a 1992 ProCraft 180V fiberglass fish and ski boat. It came with what I assume is the original matching outboard - a Mercury 150 Black Max. Serial number is 0D145256. Against my advice he bought it without doing a compression test nor an on the water test and they just...
  5. scout-j-m

    Which remote controls for 1988 Yamaha 30hp?

    I have a 1988 Yamaha 30hp, 3 cylinder, Model # 30ELG. The motor is currently equipped with a tiller and instead of having the starter and kill switch on the motor, it came with a keyed ignition and kill switch mounted in a 4"x4" electrical junction box which has been mounted to my transom. The...
  6. scout-j-m

    Carb Roller Part # for Yamaha 25ESD

    I recently acquired a 1990 Yamaha 25ESD in need of a decent bit of TLC. Tinkered with it a little and one of the things I saw that it will need right off the bat is a new carb roller as it has one really bad flat spot as well as a couple more at other locations on the roller. I am not seeing the...
  7. scout-j-m

    Corroded Yamaha 30hp Lower Unit... Repairable? Cause?

    I bought this lower unit off of a 30hp Yamaha 3 cylinder a couple weeks back in hopes I could repair it. As the pictures show, it has serious corrosion plus possibly some other kind of damage in the area behind where the trim tab anode goes. There was also no fluid in the lower unit but it does...
  8. scout-j-m

    M40D Fuel Line Size

    I have Tohatsu M40D carbs on my 1988 Yamaha 30. Until recently they had the thick black fuel line connecting them together with the fuel pump. I threw it away and put on some 1/4" ID Tygon translucent yellow line. It is now leaking at the connection to the elbows on the two carbs without the...
  9. scout-j-m

    Dual Ignition Coil Resistance Test

    Recently purchased a 1986 Yamaha 25hp, model 25SJ. Am having issues with very weak spark. I found some specs online and began testing the resistance of various parts of the ignition system. Everything checked out until I got to the ignition coil. This model has the dual ignition coil like in the...
  10. scout-j-m

    1982 Mercury 9.8 Coolant Passage Blockage

    I picked up the subject motor late last summer for really cheap. Figured I'd fix it or strip it and sell the good parts. Luckily it had great compression but the CDI box was shot. I waited probably 3-4 months for the by far cheapest one online to get back in stock and got it installed and now...
  11. scout-j-m

    1986 25hp Yamaha - Model # 25SJ

    I went with a friend and helped him buy a 1986 Yamaha 25hp, manual start, short shaft, model # 25SJ. The motor had a broken recoil starter and was not in running condition so we checked spark, compression, and shifting operation along with general overall condition. We got 120 psi on each...
  12. scout-j-m

    Yamaha 30 Lower Unit Repair

    Subject motor is a 1988 Yamaha 30hp 3 cylinder long shaft. I bought it last summer with a non-working lower unit. The lower had a broken shift rod and after tearing into it found that the forward gear has one tooth completely broken off. There was also a crack and subsequent very questionable...
  13. scout-j-m

    New Multifunction Tiller to Old Outboard with 7 Pin Harness

    I have a 1988 Yamaha 30. It is a tiller but has most of the stuff already installed to be a remote motor. One of those things includes the remote 7 pin wiring harness. Right now the wiring harness goes to a electrical junction box mounted on the transom which houses the key and emergency kill. I...
  14. scout-j-m

    1988 Yamaha 30 Exhaust Ports

    I have a newly acquired 1988 Yamaha 30 3 cylinder. It had a bad lower unit at the time of purchase. I bought a used lower last week and changed the old but clean oil and put on a new impeller. It’s pumping water fine and shifting good. But one thing I noticed is that the two slit exhaust...
  15. scout-j-m

    Adding tell tail to a 1959 35hp

    Im fixing up my dad's old 1959 35hp Evinrude. Compression is 110 and 115. Ive cleaned it up well and rebuilt the water pump and put in new gear oil. Still searching for a kit for the fuel pump and carb. In the meantime, I was thinking about adding a tell tail to this motor. I know it is...
  16. scout-j-m

    Yamaha 30hp Lower Unit Compatibility

    My motor is a 1988 Yamaha 30hp 3 cylinder long shaft. I am tearing down the lower unit after what was initially a broken shift rod and have now also found forward gear has a missing tooth. Before I commit to the time and cost of rebuilding I would like to search for a used lower in good shape. I...
  17. scout-j-m

    1988 Yamaha 30hp long to short shaft conversion?

    I've mainly had OMC motors along with a few Mercuries but dont have any experience with Yamahas. I recently found a 1988 30hp Yamaha Model# 30ELG for sale which is listed as having shifting problems. Surprisingly, LU parts are pretty reasonable so it may be worth a buy. My issue is that I need...
  18. scout-j-m

    9.5hp pilot ring question

    I'd have to look back at old posts to recall exactly what year my motor is but I believe it is a 1967 or 68 Evinrude 9.5hp. I pulled the powerhead out of the clamshell a couple of years ago to track down an exhaust leak and just got back around to working on it recently. I have replaced the...
  19. scout-j-m

    Experiences with the current model Yamaha 25hp?

    Hope this is the right sub-forum for the topic. Does anyone have personal experience with the new, lighter Yamaha 25hp? I would like to purchase a new 25hp within the next year or so and like the low weight plus other features these outboards offer.I just haven't seen many real world, non...
  20. scout-j-m

    1992 Plastic Topped 15hp Carb vs 1982 All Metal Carb

    Aside from the design, is the performance of the later model 9.9/15 hp OMC carburetor identical to the earlier models which are all metal? I have a 1992 9.9 Johnson which has a 15hp carb of the same year on it....when I got the motor it ran great but never idled well. Found out it had 1993 or...
Top