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    83 Merc 5.7 Rochester Choke Adjustment

    I have a rochester carb with a "stove" bi-metal spring type choke. The when cold, the front choke plate does not close at all, making starting a matter of pumping 15 times and getting irrated. When it finally dawned on me that I was simply increasing the fuel quantity to offset too much air,I...
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    Merc MCM260 5.7 Starter R&R

    Don has convinced me to address my starter problem on my 1984 Merc MCM260, which is the GM 5.7. It is in a 25' Sunrunner cruiser.I have replaced a number of auto starters, but am hesitant on the boat. I can see the bolt closest to the starboard side and can reach it. The other bolt is on the...
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    Whoa Boat!

    Several years ago, I was preparing to trailer my 15' runabout with a 72 Johnson electric-shift ( important detail ) engine. I had my 2 small kids aboard while the wife backed the malibu wagon down the ramp. I approached with a little more headway than usual due to a crosswind. I boosted abit...
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    Merc260M Starter bolts?

    When attempting to start, I frequently get 1 or 2 clicks instead of turning the starter. If I keep turning the switch ( and I have very charged batteries ) it will eventually turn over & fire up o.k. I cleaned the cables at the main starter terminal and it fired up a bit easier. It has...
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    Merc RPMs Getting higher & higher

    I have a 88 Sunrunner 245 with a Merc 260 ( 350)& alpha 1 turning a 17" aluminum prop. It used to run up to about 4800 rpm @ WOT. Then it started going as high as 5000 rpm. I changed the prop to a new one ( also 17" ), no change. Everytime I take it out, it seems to increase RPM. Now, it shows...
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    Sudden oil sheen in slip?!

    I had a high r.p.m. situation caused by using an improper prop on my 88 merc 260 / alpha 1. Replaced the prop from a 15" to 19" pitch. Noticed this morning a thin sheen of oil or some petroleum product on the water in the slip. This thing is a pain to trailer. Is this something a worry wart...
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    88 Merc 260 w/245 cruiser prop question

    What is the recommended prop pitch (alum)for a<br />Sunrunner 245 cruiser( similar to a Bayliner )245 w/ Merc 260 at about 5800 lbs? A prop shop recommended a 15 1/4 X 15 and it is over revving to 5700 rp.m.s. I am thinking a 19 or 21 would be better.<br />Also, what is a normal oil pressure at...
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    Evinrude 1973 50 h.p. Overheats

    My 1973 Evinrude 50 h.p. still overheats with a new waterpump. ( no water flows from upper exhaust port,as it did previously)I cannot find the thermostat and was told the powerhead needs to be removed to find it. I HOPE this is inaccurate. Any ideas?
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