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  1. S

    1968 Johnson 3hp Drive Shaft Oil Seal Removal

    I'm looking to replace the drive shaft oil seal on my 1968 Johnson 3hp. #10 in the Gearcase Group parts catalog. 0327031 - Oil Seal. I have the new seal, but I've never done this before. How do I remove the old seal without doing damage? I've seen that there is a special tool for it in the...
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    Trim/Tilt Motor Brush Replacement

    I need to replace the brushes in the trim/tilt motor of my 2000 Mercury 30hp 2 stroke outboard. I tried looking it up on the parts list of the website, but it doesn't seem to go past buying a new trim motor. Can anyone point me in the right direction to getting some replacements? The trim...
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    2000 30hp Mercury 2 stroke, Tiny Tach Sparks per Revolution setting

    Hi folks, I just got a Tiny Tach to calibrate engine idle speed for my 2000 Mercury 30hp 2stroke. (http://www.marineengine.com/parts/mercury_marine_parts/sn/0G963663) I have the service manual for the motor, but I can't figure out what I should be setting sparks per revolution to. I'm seeing...
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    2000 Mercury 30 hp, possible to convert to 40 hp?

    Hey folks, I've got a 2000 Mercury 30hp motor on a pontoon boat. It pushes the boat just fine with a couple people on it (about 16 mph), but it sure slows down when the boat is full (didn't measure speed while full). The service manual that I got for the motor seems to be the same for 30 and...
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    A Lot of Play in Gear Shift Handle

    Hey folks, I just picked this motor up. It doesn't pump water so I'm getting a new impeller, but there's another thing I noticed that I don't know how to fix. It will shift through all the gears just fine, but once in any of the gears (F, N, R) there is a lot of play in the handle. I'll link...
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    1975 Evinrude 6hp Cam Follower Adjustment

    Hey folks, I have a quick question about the cam follower adjustment. In the manual there is a flat blade for the cam follower and it shows that the leading edge of the blade should be opposite the throttle cam mark. I have a roller style cam follower, so how should I adjust it? Right now I...
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    How does this gas tank vent/regulate pressure?

    Hi gentlemen, I was walking through my grandfather's garage today and saw a 6 gallon gas tank that I'd like to use to replace my 3 gallon tank. By looking at it, I'm not sure how it would vent. Would appreciate a short explanation. Cheers.
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    Exhaust Holes in 1968 3hp Johnson JHL-23M

    I took the old 1968 3hp out for a spin today (JHL-23M Rigid Standard Gearcase). There are about 6 exhaust holes on the back of it, but there was very little water coming out of them. If I put my hand out I could feel that there was moisture in the exhaust, but it was hard to see water coming...
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    What year is this 6hp Evinrude and would it be a good parts motor for 1975 6hp Evinrude

    Hi folks, there's a 6hp Evinrude for sale that I'm considering buying as a parts motor for my 1975 6hp Evinrude if it's compatible. I can't see the model number on the plate and the owner hasn't responded to the question yet. I was hoping some of you could identify the year at a glance, and...
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    Low Speed Needle Tip Broken Off?

    Hi folks, I acquired a 1975 Evinrude 6504R 6hp Fisherman in the middle of last year. It's been running great at mid and high speed, but I've been having trouble getting the motor to run at low speed. I thought it must be a dirty carb problem, so I got myself a kit and cleaned it out. The...
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    Reuse Broken Starter Spring? 15hp

    Hi folks, I realize a replacement starter spring is relatively inexpensive, but do you think it's possible to reuse a spring where the stopper coil on the outside of the spring cup broke? Do you think it's possible to wind up the end to make a new stopper coil? 1985 15hp Evinrude. Also please...
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    1968 Johnson 3hp JHL23-M Gearcase Test Pressure

    I'm suspicious that the gearcase on my 1968 Johnson 3hp, JHL23M has a leak. I got a little pump with a gauge on it to test if it holds pressure, but I don't know how much pressure to apply. Any thoughts would be helpful.
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    Trim/tilt intermittently doesn't work

    2000 30hp 2stroke Mercury. I've had trouble using the trim/tilt every now and then. Sometimes I can run the boat for hours and it works fine. Other times it will stop working for some reason I can't identify. When it does stop working it acts as though it's completely disconnected to...
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    Missing Trim Tab Anode 2000 30hp Merc 2Stroke

    I was swimming by my engine yesterday while it was tilted up and I noticed that something looked strange above the propeller. I went in a little closer and it looked like there was a piece missing so I opened up the parts catalog and it looks like #45 from the Gear Housing(Propeller Shaft) page...
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    Anything special about Quicksilver Brand 2 Stroke Oil?

    In years past I have bought Quicksilver 2 stroke oil for my 2000 30hp Merc. I'm looking on amazon to get some more, and I'm seeing that I could save some money if I get Pennzoil Marine XLF instead. It's TCW3 certified by NMMA, so I was wondering if theres a reason to stick with the Quicksilver...
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    Flywheel Cover on 1985 Evinrude 15hp E15RCOB

    My 1985 15hp Evinrude doesn't have a flywheel cover on it like my 1968 3hp Johnson has. I noticed when removing the flywheel on the 15hp that it was much dirtier underneath than when I removed the flywheel on the 3hp. Would it do any harm for me to get a flywheel cover and pop it on when I...
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    Lower Unit Oil Drain Plug Compatibility

    I have a 2000 Mercury 30hp 1031412WD. The oil drain plugs are getting pretty ragged from poorly fitting flat head screw drivers over the years. I recently saw some Evinrude/Johnson oil drain plugs that have Allen keys (OMC Part #0307551) instead and I was wondering if they would be compatible...
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    Took Lower Unit off for Impeller Replacement, Can't Get it Back in Properly

    Hi folks, I have a 1968 Johnson 3hp, JHL-23M, I replaced the impeller today, but for the life of me I can't get the lower unit back on so that it fits snugly. I fought with it for about 50 minutes, but the best I can get is flush on the front with a 5/16" gap toward the back (prop end). I'm...
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    1968 Johnson 3hp Spark Gap Jump Test

    I'm suspicious that my 1968 3hp Johnson outboard is only firing on one cylinder. It's hard to start and it doesn't have much power. I realize 3hp doesn't give much power, but I have a 14' aluminum v-hull that barely crawls on full throttle. I went through a full carb rebuild and new head...
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    1975 Evinrude 6hp Thermostat Question

    I had posted a thread a month or so ago and someone had suggested I check to see if my thermostat was working. I opened the thermostat cap to have a look, it didn't look like it was stuck open, but while I was in there I decided to check that it was opening properly. I heated some water to 150...
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