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  1. M

    Gas Tanks Up Front in bow for 75HP outboard,is this ok to do?

    I would like to put my two 6 gal gas tanks in the bow of my boat. The boat is 17-1/2 feet would this cause operating problems? And if I did, would I put the squeeze bulb near the gas tanks? Thanks for your help in advance,,Mike
  2. M

    Gas tank Placement Effect on Outboard Performance

    I am considering moving my gas tanks (2- 6 gal.) to the bow of my boat,,it is a 17.5 ft. tracker,,,my question is,,with the length of hose I will need,about 16 feet will that have an effect on my engines performance,,and if I can,,,where should I place the primer bulb for best results. Engine...
  3. M

    Rebuilding Carburator Have Question on Vent Fitting

    :confused:I just got finished rebuilding the carb on my 1986 75HP merc. Question,,,where the carb vent overflow is there was a brass fitting with a hole passage that went straight thru the fitting,this is where gas was pouring out,,,,in the new rebuild kit there is a screw with a needle type...
  4. M

    Excessive Gas Starts Fire 86' 75 HP merc

    Outboard was running good,got it starting good and no bogging,,,now I have a new problem,,,,I leave my motor tilted up with a transom saver bar,,,I disconnect the gas from the tank quick coupler when not in use and when I trailer it to the ramp. When I start the motor this is my procedure,,,I...
  5. M

    1985 75HP Merc Carb Adjustment Question

    I believe I have "C" carbs,,question,, is the bottom carb lean & rich adjustment for high speed only ,,I believe I heard the top was for low speed and idle and the bottom carb was for high speed.Thanks,,,Mike
  6. M

    1986 75HP merc Tilt Trim creeps down slowly ??

    My tilt & Trim ( type B unit) works great as far as moving up and down,,just when I set it up it slooooowly creeps down,,,I full trimmed it up tonight and locked it up and when I came back a couple hours later I removed the fill cap and I needed to add fluid,,I did that twice so far tonight,,I...
  7. M

    Fuel Filter,,is it suppose to be full or half or less?

    My inline fuel filter that is locate between my fuel pump and carbs is clear ,,when my engine is running it goes down to half or less and stays there,,,when I throttle up it goes way down to what looks like nothing and then fills about half way,,,is this normal for a 1986 75hp merc? Thanks,,,Mike
  8. M

    Air Bubbles in the Glass Fuel Filter,,,,

    I put a new glass filter on between the fuel pump and the carbs It started up great ,,,then the glass filter got low and gas and air bubbles started filling it ,,then it started balking and running rough. I noticed gas leaking from the connection from the hose to engine male & Female connectors...
  9. M

    Sea Foaming for Outboards

    I have a 1986 75HP merc and I want to seafoam it due to some bogging issues. I posted awhile ago and someone posted a formula for sea foaming for the carbs,,,I was wondering if anyone out there can give me some instructions for this,,,,they were a little different from the can,,thats why i am...
  10. M

    which Octane is the best for a 1986 75 hp merc

    I have been hearing all kinds of stories about which octane is the best to use,,,,,1st discussion is a 1986 75hp merc was built to run on low octane,and that hi octane will ruin the engine because it burns hotter,,,,then I was told that if I use 87 octane my motor would only run on 2 pistons...
  11. M

    Ethanol ,,,is adding Jet Fuel to gas a help??

    I have spoken to alot of people about bogging and they have said they are starting to have the same problems,,,,all agreee that the ethanol in the gas is causing this problem among boaters,,,,the thought cam eup that by adding a small amount of Jet Fuel to your gas will help the problem greatly...
  12. M

    Pros & Cons of Seafoam in gas tank

    I want to put something in the gas tank to help keep the carbs flowing smoothly..I somtimes have gas in for a week before I use it. What other additives can be used to clean and keep running smooth? Thanks,,Mike
  13. M

    Fuel Problems Squeeze bulb does not stay hard

    I have a 1986 75H.P. Merc on a 17 ft bass tracker,,,,had new stator,trigger,switch box installed . took boat out and it bogged, at 2000 rpm's,brought back and they said it was a spark jumping across the plug..they said they fixed...took out today and it ran alot better took it up to 4000 rpm's...
  14. M

    1986 merc 75 H.P. Tilt & Trim

    Tilt & Trim Work great EXCEPT when I tilt the engine to trim it the engine seems to go back to its original position by the next day. The Tilt & Trim sounds good operating no noises, Could this be from low oil in the T&T unit? Or is it more serious? Thanks Guys,,,,Mike
  15. M

    Need Advice on Timing & Sync

    I installed a new Trigger & Stator,,Very Hard starting and rough,,,,,I did the dial indacator and reset the timimg pointer,,,,,Started right up and sounds strong,,,now I wanted to do the sync link and I was wondering , the book says it needs to be in a tank,,,could I use a large garbage pail...
  16. M

    Hard start rough idle replaced Stator and Trigger

    I replaced the Stator and Trigger on my 1985 Mercury 75 H.P. engine due to corroding wires.The engine was hard starting and rough idling before the new stator and trigger and I thought rather than splice I would get new Stator & Trigger. It Still is running Rough and hard to start. I found TDC...
  17. M

    Installing New Stator and Trigger Question

    1985 mercury 75H.P. Do I need to retime the engine and is there anything else I have to do after installing new stator and trigger.
  18. M

    Corroded Wires on Stator Being Spliced Need Advice

    !985 75H.P. Merc starts up good and runs,,but I noticed the stator wires corroded and I went to my merc marina and the parts man said because the enging starts and runs he would recommend I just splice new wires with connectors,,,I just want to know is there special wire I need to use,and what...
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