Recent content by almost_nick

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    spark plug question

    hey I have a 1975 650 65hp merc. and I rebuilt the carbs, put all new fuel lines, new spark plugs, rebuilt water pump, and all seals in the lower end. Still the engine will not go over 2100 rpm at full throttle. And today I pulled the plugs and found that the plug in cyl. 1 looks dry. There is...
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    Merc 650 gear oil leak!!!

    ok guys, I have a 75 merc 650, and there seems to be gear oil leaking into the lower end where the water pump and shift shaft is. I put brand new seals on the water pump, and New gaskets. I also put new seals in the shift shaft bushing. I checked the seals and the lower end for cracks and rough...
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    Tuning 2 carbs????

    I have read many carb tuning threads and manuals, and i am still not able to find if you tune both idle jets at the same time, or one at a time. I have a 75 Merc. 650 that needs tuning. thanks guys.
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    Mercury 650 running rough

    Hey guys, first just want to say im new to the site, but I have used this site many times for engine problems, and you guys are a big help. Well finally I have a problem where I have to post a thread. I have a 75 Mercury 650 and it idles ok and runs ok when not under load. The second i put...
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