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  1. ultra353

    1996 Evinrude 115 model number lookup.

    I have a 1996, as told to me, 115hp 60 degree engine with no model identification tag. I have only a serial #. Went to a dealer and they couldn't help. Serial # G-4022472. does anyone know how to get model number for ordering parts? I also have a G-4160977 spare motor that i think is...
  2. ultra353

    1991 75hp L.U swap to 1994 115 work?

    Hi, does anyone know if a 1991 Mercury 75 20” lower unit will fit a 1994 115 with a 25” w/removable spacer . Need a 20” for my boat as my 75 oil pump went out and rod went through block, This 115 is available but is the 25”xl motor and I was wondering if I could just swap the L.U . Thanks
  3. ultra353

    72 Johnson 25 hp gearcase bearing head seal

    I’m resealing this gearcase with all new seals. I’m not sure how the bearing head seal is removed and replaced. Anyone have an idea , thanks.
  4. ultra353

    ‘90 Yamaha 25 hp 2 stroke carb

    i rebuilt the carb on the mentioned motor and I can’t recall on the air screw setting. I’ve seen the standard 1 1/2 turns out to 2 2/8 turns out. Does anyone know for sure? Thanks The manual calls for 100:1 on the oil ratio, seems pretty lean to me.
  5. ultra353

    '85 Yamaha 115 vs '91 mercury 75

    I have the merc 75 hp on my 17.5 deep v aluminum f/s boat now. Tops out about 31-32 with me and my 2 kids 16/14 yr olds. Overall happy with the motor. Just picked a '85 Yamaha 115, I don't know much about theses v-4's. Not sure I'm going to swap a proven motor to me to an unproven one. Anyone...
  6. ultra353

    '85 Yamaha 115 opinions

    I've been offered a boat and trailer with a '85 115 motor for $250. Not sure if it runs, but turns over freely, has a ss prop and in decent cond cosmetically . What should the compression be, decent motors, any major issues? Where these v-4 motors gas hogs? I have a '91 mercury 75 hp now on...
  7. ultra353

    Going to the scrap yard

    Man, if I had the room. Boat is going to scrap yd, the motor blew and it's been sitting outside uncovered for 6+ yrs. the scrap us is giving him .40 pound. The interior wood is rotted , the owner is just done with it. I bought the Motor for next to nothing and he offered the boat to me for what...
  8. ultra353

    '91 merc 75 hp aux tilt/ trim switch

    With the clamshell style hood there doesn't seem to be a good place to put a tilt/trim switch like the motors with a pan- 1 piece hood. Was this style motor ever avail with a remote switch, any ideas? Looks like it's gonna be a pain to put a transom saver on by yourself. Maybe use a piece of...
  9. ultra353

    '71 9.8 mercury maker points setting

    I'm Not used to this type of system, opposite of the omc points setting, I have this motor and replaced all of the frayed, cracked wiring that was shorting out the motor. It had weak spark on both cylinders so I hope the stator is in working order, just bad wiring and dirty points.The points...
  10. ultra353

    Mercury 75 hp compression difference

    I'm looking at buying a boat that has '91 Mercury 75 hp on it , it's just a bit out of the 10% rule on compression . Top and middle 120 lbs, bottom 105lbs, walk away or see if some engine tuner brings it up. I'll see if I can look into the cyl for any scoring
  11. ultra353

    '91 mercury 75 hp , decent motor?

    Besides the normal things to check, compression, lower unit fluid, ect, are these decent motors? Any major problems with this yr or model? They say it just had all the oil/fuel lines replaced and runs good. What are your opinions on this motor? Thanks
  12. ultra353

    '89 smokercraft resorter resto

    Bought this 2 yrs ago as a project. All the wood was rotted, motor didn't run and the previous owner started to take the interior apart but realized it was more than he wanted to tackle. I lost many of the pics when I first got the boat but I post what I have
  13. ultra353

    85 alumacraft pro17 resto

    My new project for late winter early spring, paid $300 for it, they said motor was locked up- starter was rusted. Motor has good compression but didn't have time to put one and test. Main floor is solid but all the platforms and lids are rotted. Once wx starts to get warm I'll start on it
  14. ultra353

    Will my boat be underpowered?

    I picked up a new project boat and wondering if it will underpowered , it's a alumacraft pro 17 aluminum bass style boat. 17'5 long and 73" beam powered by a '85 Mercury 50 hp. The hull is rated for 75 hp. My current boat is a smokercraft 151 resorter powered by a '89 Mercury 40 hp, tops out...
  15. ultra353

    '87 johnson 70 hp low comp on 1 cyl

    Looking at possibly buying this motor , owner says low comp on 1 cyl. Not sure how low or how big of a difference. Has tilt/trim and he's asking $325. Before I go look at it , R these decent motors, is it worth or walk away
  16. ultra353

    Shift issues on 89 merc 40 hp 4 cyl

    Took boat out ( new to me) had no reverse, fwd / N were fine when shifting from remote. I verified that cable wasn't moving far enough to shift into Reverse, I adjusted it so fwd ratcheted, N spun freely and reverse locked up both ways. Took it back out seemed to work good for a few mins, then...
  17. ultra353

    '89 mercury 40, 4 cyl rebuild

    Thinking about picking up this motor as project. Owner say oil pump went out and took it to mechanic who disassembled it and said a piston was gone. They didn't want to have it fixed, everything is there just in boxes. What do you think it will cost to get this motor up and running, - parts ...
  18. ultra353

    Filing down .030 piston rings to stock size?

    Hello all, Can this be done with relative ease with a file or not worth the effort and just get the new set of std. rings ? A new stock set of rings is $45-50 where .030 oversize is $15, I`m a tight budget right now( divorce) and was just thinking of saving some $$$. Its for a `75 evinrude 25...
  19. ultra353

    Rod end caps id

    I`m rebuilding a `75 evinrude 25 hp this winter, I disassembled the motor this past summer , honed cyl`s and had everything marked and ready to be put back together when parts and time allowed. Well, the paint I had on the rod end caps has dissappered( I`m thinking from the oil I have...
  20. ultra353

    `89 40 hp , 4cyl exh cover gasket replacement

    I have water leaking from the bottom of the exh cover on this motor, I tried to tighten up the bolts but it didn`t help, does the powerhead have to be removed to get all the bolts out or is there enough clearance? I also have a small leak on bottom of cylinder block cover, no visable tears were...
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