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    1987 4.3 GMC V6 oil pressure.

    What is normal oil pressure range for this engine? This one is reading from idle 50 to 75 psi cruising. Oil and filter are new.
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    2005 Johnson 25hp 2 stroke warning horn?

    It depends on which model you have. If you have the temperature switch for the horn, there will be a tan wire running from the cylinder head which would either control the horn or make it easy to add one. You would need a source of electric power.
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    Which V4 Cylinder Heads Have Higher Compression?

    I have two very good sets of V4 Cylinder heads: 324528/324529 & 326504/326505. They look identical. Can anyone tell me if one is higher compression than the other? Thanks in advance for any assistance or direction.
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    Bluechart Card Update.

    I have emailed Garmin twice at cartography@garmin.com to get a tracking number for the trade in discount on my existing card. I have had no reponse from them at all. Does anyone know how to reach them?
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    V4 Flat to bubbleback conversion

    I have the parts to add the extra cooling to my exhaust. Does anyone know what the necessary modifications are?
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    NATVAR 241/261

    I'm looking for a NATVAR 241 261 retail source online. Does anyone have a link?
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    Need axle w/spindles for small Holsclaw Boat Trailer

    The frame on my old Holsclaw trailer is 37" wide with 1-3/4 slipper springs centered at 34.5". The total length of the old axle is 53" including the 1" spindles. The trailer is used in salt water. I have been unable to locate a replacement axle and would appreciate any leads. My email address...
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    1999 Johnson 150 - Overheat ?

    When the motor overheats under conditions like that, it often causes failure of the cylinder head gaskets, which can allow water to enter and gases to escape. See if you can correct it by doing a re-torque on the cylinder head bolts.
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    OMC Control box on 1984 200 Evinrude

    Some of the controls had an override button in the middle of the control handle, allowing you to throttle up. See if you have that.
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    Evinrude serial number location?

    Look on the port side of the transom bracket for a 1 X 3 aluminum plate with 2 sets of numbers: first is model number; second is serial. If the plate is missing, look for a 1" round aluminum welch plug on the block.
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    1974 85 hp Johnson lower unit install

    Shift rod probably is catching. It's a challenge to do that alone, but you need to keep the gearcase lined up with the rest of the motor. Look up the midsection at the two water tubes. They should have guides that look like pieces of hose. Pull them down enough to help you guide the water tubes...
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    year fisherman

    6502 is a 1965 Evinrude model. The fuel mix is 50:1 - 87 octane to tcw3 oil. http://web.archive.org/web/20011223003431/www.evinrude.com/docktalk/modref/evmodyr/EHP6.html If a black bar appears when attempting to use the above link, select "remove this frame" from the center of the bar.
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    Evinrude De-Carb with Sea Foam

    Since 2003 the Engine FAQ B. Article has been about decarbing with Sea Foam. <br /><br />FAQ De-Carb article <br /><br />I just got my annual order of Sea Foam Motor Treatment and Sea Foam Deep Creep from Midway Auto Supply in Dallas, and I thought that I should ask for an update from the...
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    Water Pressure Guage Question for OBJ

    I'm getting a J/E water pressure gauge this AM for my 1988 140 v4 looper. It has the original thermostat configuration. <br /><br />I'm looking for any advice on the best place to tie in the line even if I need to tap.<br /><br />Thanks
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    140 1988 Looper Fuel Pump Recommendation

    I want to try a conventional fuel pump on this motor. <br /><br />I would appreciate any technical advice that anyone would want to share, and also recommendations on which pump to use.<br /><br />Thanks
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    Tachometers, Gear Ratios & Slip

    Since it is impossible to translate engine RPM into prop RPM without knowing the gear ratio, I was wondering if there is a table or chart in the public domain showing those ratios for all or most OMC models. <br /><br />(Failing that, I would appreciate it if someone would let me know where I...
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    Models Link For Scaaty

    Here is the link for all the models in the archive, including military: All OMC Model Guides<br /><br />You may have to wait a while if this post overloads the server. I usually give the link to a particular horsepower so that it doesn't time out. 20HP Johnson <br /><br />If you change the...
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    Antique Outboard Motors Swap Meet Nov. 1

    I was wondering if many of you are going to be at Seneca Falls next weekend? Sounds like it's going to be a major event.
  19. E

    Antique Outboard Motors Swap Meet Nov. 1

    I was wondering if many of you are going to be at Seneca Falls next weekend? Sounds like it's going to be a major event.
  20. E

    Identify Gear Housing

    I have a new gear housing stamped 317903 which has been in my shed for a long time. <br /><br />It is the same shape as the 1973-1976 85,115 and 135 lower units, but smaller. <br /><br />Could someone identify the motor that this goes to?<br /><br />Thanks
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