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  1. Mas

    1988 25hp Mariner compression?

    A friend of mine gave me a '88 25hp Mariner. I spent the afternoon cleaning it up...pretty good shape. The PO said it ran great...etc. I did a compression check and got 105 Psi on both cylinders...great it is even...but what is the norm for this motor I'm still working on spark...nothing...
  2. Mas

    Vintage Holsclaw roller 3" X 5" ? Any leads?

    Hi, I'm looking to replace a damaged rear roller on my 1957 Holsclaw trailer. I'm looking for an original or period correct. The original is 3" x 5" and grey in color and has a 3/4" hole. Any leads? Mas
  3. Mas

    Gear Ratio: '73 65HP vs. '77 75HP Evinrude?

    Hi, My motor is a hybrid of a 1977 75 HP Evinrude powerhead sitting atop a 1973 65HP Johnson leg. Obviously a previous owner did some changing. My question is "what is the difference in gear ratios between the two motors? Are they exactly the same? Also, how can I determine the gear ratio...
  4. Mas

    What year 75 hp Evinrude? W/Pic

    Hi, I'm trying to ID the year of this motor from only the photo...sorry I do not have a model number. Thanks, Mas
  5. Mas

    Test prop for '82 115 HP Johnson?

    Hi, Anybody have a part number for a Test prop for '82 115 HP Johnson? My in-law is looking for one for his motor. He said something about a "D4." Thank you Happy Boating, Mas
  6. Mas

    Merc 6hp four stroke...compression values?

    I'm doing some diagnostics for a friend. I did a compression check and got rather low numbers...55# Is this a low compression motor, or is this number low? Also, throttle should be all the way open when testing a 4-stroke? Thanks for the help & Happy Motoring, Mas
  7. Mas

    1970 9.5HP "Rude Driveshaft diameter?

    Hi, Does anybody have a driveshaft from the above motor that could be measured for a accurate diameter. I have a gearcase that I believe is from a 9.5 HP 1970-73 johnson/Evinrude motor. Knowing the driveshaft diameter will help me confirm by comparing the measurement of the bushing from the...
  8. Mas

    '57 Lark Restoration Update w/pics

    It's been a long time since I updated any progress on my Lark restoration. I have been slowly working on it over the months, and I am in the process of assembly after painting in August. It's starting to look like a motor again and not just a million parts here and there that I've ben tripping...
  9. Mas

    Paint codes '74 johnson green?

    Anybody know? Mas
  10. Mas

    Flywheel torque '74 Johnson 4hp?

    Anybody know the value for torquing the flywheel...'74 Johnson 4hp? Mas
  11. Mas

    '74 Johnson 4 HP Rewind Starter Issue

    OK, I took apart my rewind starter to clean, lube, and increase tension...but I cannot figue out how to best tension the spring or where to place the outside loop of the spring. I think I've stirred a hornet's nest!? Anybody have some insight or a picture? Mas
  12. Mas

    '57 Lark Skeg Rebuild w/pics

    My Lark that I'm restoring had a pretty ground up skeg. The lower unit on the left is off a '56 30 HP Johnson (next project!) and is for shape reference. I had my brother build up some aluminum on the bottom to get a rough profile, then I went to work with the file and sandpaper, and then...
  13. Mas

    NOS '57 Lark PowerHead w/Pics

    Against all "economic common sense," my $40 LArk purchase last year has gotten a "little bit" more expensive. Basically one thing led to another, "good deals" along the way, and a loss of reason has gotten me to this point. Below are some pics of parts, all being NOS, I have acquired over the...
  14. Mas

    Piston weight difference issue

    I recently purchased 2 NOS vintage pistons for my '57 Lark 35 HP. In wanting the best running motor, I decided to use a gram scale to compare the two pistons' weight. The results showed the two pistons 10.01 grams apart...exactly. This is the weight of 4 U.S. pennies. I have not yet weighed...
  15. Mas

    '57 Lark broken bolts

    I thought I would just vent a little. I got back to restoring my '57 Lark today by further breaking down the powerhead. I broke three bolts...two head bolts and one decompression cover bolt. This is addition to the three I broke removing the powerhead from the mid section several months ago...
  16. Mas

    Johnson TN-26 Dropping LU?

    OK, I want to replace the impeller in my TN...what do I need to remove? Since this is a neutral model, what linkage must be undone? I've removed all obvious bolts on the LU...but only the lower housing came off. I was hoping the upper plate with the neutral actuating arm would slide off too...
  17. Mas

    RD-18 Flywheel Nut Size?

    Anybody know the size nut for a '56 Johnson RD-18 30 HP Electric crankshaft/flywheel? Mas
  18. Mas

    '57 Lark Swivel Bracket frozen?

    Are there any "keepers" that may prevent the pivot shaft of my 35 HP Lark from being removed from the swivel bracket? My motor sat in a 55 gal drum prior to my ownership and does not swivel. I've pumped grease and penetrating oil with no luck. Before I begin using my mallet, are there any...
  19. Mas

    Cracked rods & alignment tool for '57 Lark

    Are the rod bevels on a '57 35hp Lark hand beveled or machine beveled? The OMC Alignment tool is required for the machine beveled rods...but could damage the rods if they are hand beveled...correct? I actually ended up buying the tool (relatively cheap @ $100) but am realizing that the...
  20. Mas

    Starter solenoid issue?

    Today I tried to start my '59 Seaking 35 hp using the starter...the recoil is killing me! I think my solenoid is bad, but here is what I did: Firstly, the motor is not mounted on a boat, but rather running in a barrel. I connected the black ground from the harness to the negative of the...
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