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  1. J

    fuel to oil ratio

    I recently purchased a used Yamaha outboard and also tracked down a service manual for it. The manual calls for 100-1 fuel to oil ratio. I am hesitant to go that lean. Should I be ? I was considering 50-1. Do any of you run 100-1? Looking for some recommendations thanks. ( Its a 1984 25hp )
  2. J

    yet another model year ?

    Ok, ive been looking for a half hour and decided to turn to you fine folks Model # 25gem Serial # gh7 L 500230 I was able to detrermine it is post 1983 and I believe the "L" to depict shaft lenth. Other than that I am at a loss. Also if you know of a good link. It'd be much appretiated...
  3. J

    Need to find a good used outboard

    fairly new to boating and this forum. I've been searching for a good used outboard here in oakland county michigan. Not having much luck with craigslist or local marina's (which have no used outboards in my experience). Just looking for some suggestions from some experienced boaters in the area...
  4. J

    What size outboard?

    What size outboard would be appropriate for a 14' aluminum starcraft with with a floor and a couple seats? It came with a 20hp which has never run well. It is rated up to 35hp. Ive been looking for outboards as a backup plan if i cannot fix mine. I see alot of 15hp available. Would this be too...
  5. J

    1968 merc 20 hp

    Looking for some advice here. The issue is fuel. The motor runs out of fuel. I have been up and down the fuel tank, fuel lines, carb, replaced the fuel pump diaphram, primer bulb and hose. filters are clean. I have put alot of time and effort into finding the source of this problem. At the very...
  6. J

    pros and cons of '95 evinrude?

    Thinking of purchasing a 15hp '95 rude. anything good/bad I should be aware of?
  7. J

    fuel pump question 68 merc, 20 hp

    My fuel pump is not working, I have replaced the diaphram and the hoses that go to the block. I checked all the fittings for blockages and so forth. I am really stumped on this one and could use some direction. oh yeah I also checked the fuel lines to and from. really have no idea what else to...
  8. J

    fuel filter question

    I want to install an inline fuel filter on my 20 hp '68 merc. looks like i have room between the fuel pump and carb. would this be okay? or should i install it on the line coming from the fuel tank? Also i was leaning towards using a clear paper type. Unless there is a better option. Thanks guys
  9. J

    1968 merc 20 hp . could use some advice

    1968 merc 20 hp runs great with muffs in driveway or in a garbage can as well. Trailer it to the lake and launch, everything goes sideways. barely starts,Will not idle. Good compression, spark, rebuilt carb., new fuel lines, fresh fuel. Could this be a timing issue? I tried to adjust carb on...
  10. J

    68 merc 20 hp spark plug wire

    Well, I couldnt get my 68 merc 20hp started today. I suspected it wasnt getting fuel. Took the spark wires off to remove the plugs to take a look and the spring stayed on one of the plugs came free of the wire and boot came off as well. being the novice that I am, Im not sure if they can be...
  11. J

    primer bulb and hose

    My current hoses are looking rough and i think i should replace them. Can anybody recommend a replacement bulb and hose kit from the can to the outboard? Im thinking of just sticking with mercury one at the dealer. They want $70 seems a little much to me. Also, the connector(quarter turn adapter...
  12. J

    '68 mercury 20 hp

    looking all over for the proper spark plug & gap. Anybody know? also, I have been looking at these downloadable parts manuals. any recommendations? Thanks, Jonah
  13. J

    20 hp merc.

    Newbie here. both to the forum and to owning a boat. Just bought a 14' mirrorcraft with a 20 hp merc 200. . I took it out for the first time tonight and it took me quite a while to get it running. (started for previous owner in one pull, ugh) I'm not sure of the year, it is older 70's or early...
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