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    oil injection checkvalve 90hp 3cyl

    2000 model 90hp 3cyl. Merc<br />sorry about long post, looking for some opinions,<br /><br />Went fishing last tuesday 40 mile round trip, checked motor before trip all OK, engine ran well, while fishing, took cowl off to show fishing mate location of main fuse, also checked vinyl line from oil...
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    Anyone seen this (fuel line)

    Hi everybody,<br />Just a comment, when checking condition of fuel primer bulb I pulled the inlet side fuel line off bulb and found the line is starting to disintegrate from the inside. This is the genuine Merc line supplied with motor (3 yrs old), it appears to be a grey PVC type with a clear...
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    Prop cupping question

    Hi all,<br /><br />I have a 13 1/2" dia. X 15" pitch SS prop from my old 90hp inline six, which runs OK on my 3cyl 90 hp Merc but the WOT rpm is too high now motor is run in (6100 rpm). What rpm reduction could I expect to get if I could get more cupping on prop, I would have to ship it out of...
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    Link & synch advice for 2000 model 90hp Merc

    Just checking if my procedure to adjust throttle arm cam and roller is correct with this newer model compared to previous models<br /><br />To adjust throttle cam after first checking carb linkage to confirm carb butterflies are fully closed.<br /><br /># With throttle control in neutral...
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    90 hp Merc information for ILLIS

    Hi Illis,<br />Sorry about the late reply, today was the first day out in the boat since Sept 2002 (recovering from a smashed up ankle), some info for you.<br /> Boat Speed<br /># 3,800 rpm = 25 mph<br /># 4,400 rpm = 30 mph<br /># 4,800 rpm = 33.5 mph<br /># 5,350 rpm = 39 mph (this is...
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    Prop pitch advice

    Hi all,<br /><br />2000 model 90hp Merc, 60hrs running, recommended WOT 5000 - 5500rpm, boat is 17ft fibreglass half cabin estimated weight 2,600lbs normal load.<br /><br />I have been running 13-3/4" x 15" S/S prop from previous motor, inline six Merc, 36mph @5700rpm WOT, in the last 10hrs...
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    Slipping prop ?

    Hi everyone, just looking for some opinions.<br /><br />2000 model 90hp Merc runs perfectly, but last few trips maximum indicated RPM at WOT (only run for very short periods) is gradually increasing (now up by approx 700 RPM). Maximum boat speed is unchanged, verified by GPS but now occurs at...
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