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    release power trim on 2cy 90 hp Merc

    Is there a way to manually release the power trim tilt on a mercury 90hp 2 cyc s/n OT087666.? The reason I am asking is that recently I had a problem with the power trim relay failure. This wouldn't be a big deal except if it failed in the down position then I wouldn't be able to get it onto...
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    power trim sending switch for 90hp merc p/n?

    I am looking for the power trim sending unit switch p/n for a 90hp s/n s/n OT087666. It mounts just under the motor near the power trim motor. I've looked in the merc online parts catalog but it doesn't show up anywhere under electrical, power trim, or accessories. sorry about the grey out...
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    synthetic oil makes for easier starts on 90hp merc '99 model

    I just did a lot of boating on the bays so I used lots of fuel. In the past the motor has always been fussy about restarting after running a while and then being off for say 30 minutes or so like after a drift over a bay. Often I'd have make sure motor was trimmd vertically perfectly and...
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    intermittent trim failure on 90hp '99 model merc 2 cyc

    s/n OTO87666 The power trim on the motor is very intermittent. I understand how it all works, the relays reverse the polarity to make it run in or out no problem with how it works. Same failure whether I activate it from the motor cowl or from up front. Fails sometimes going up or down...
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    new and old power pole differences

    Can someone comment on the improvements/changes that they have made to the power pole designs from 2016>2017? I know that they went to hydraulic hoses instead of tubing and the pump got smaller (supposedly stronger) and all models are powder coated not annodized. Normally I prefer to buy the...
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    power pole comparisons power pole II vs Sportsmans

    I've been reading the specs of these 2 power poles and as best as I can tell the only difference between these 2 is $300 Black or black/white choice 3 yr vs 5 yr warranty the looks of the arms are a bit different Pro2 looks "cooler" but that's subjective. Besides those items I can't find any...
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    starter voltages on 90hp S/N OT087666 2000 yr model made in '99

    Lately when I first start up or if I'm out floating around and the motor gets cool when I go to start the starter goes. uh.....uh.......uh......uh.......vroom start. So for about a 1/2 sec or so you think, oh,oh, we may have a low battery but then it hits vroom and it cranks fast. I'm thinking...
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    when to switch from oil injection to pre mix on 90hp year 2000

    I've got a 90hp year model 2000 made in 1999 with about 300hrs on it. I feel like I'm sitting on a time bomb with the plastic gear driven oil pump. Any rules of thumb about when would be a good time to switch to a premix? My only hesitancy with going premix is that I have a large tank. To...
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    check to be sure starter nut is holding in place - suggested regular maintenance

    After needing to be towed in I can recommend something to be checked periodicaly like regular maintenance. On my 3 cyl 2cy 90hp outboard the nut holding the starter enagement gear in place worked its way loose. Consequently when I went to start it the gear just ran up the spline of the starter...
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    90 hp 2 cyc year 2000 oil injection maintenance

    I've got a 2000 model built in '99 90 hp 2 cycle, s/n 0T08766 about 300hrs 3/4 time fresh and 1/4 salt.. Its been a great motor.but its getting old. I did some reading about possible failure of the oil injection pump. The few posts I've found seem to refer to other mercs regarding plastic...
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    disconnecting carb linkage on '99 90hp Merc

    I'm in process of removing carbs to clean them out/rebuild. I have them out mostly except for the linkage of carbs to something down at bottom of motor (I think its the oil ratio control). It looks like a ball and socket hold that the carb to this linkage. Question is how to disconnect...
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    cable ties for fuel hose clamps inside the motor?

    Inside my '99 90hp it looks like they use a black cable tie to secure the small fuel lines going to the carbs. Does anyone know of a source for these? Can conventional cable ties be used?
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    internal fuel line sizes for '99 90 hp merc

    Can some kind soul point me to a table or spec list that lists the various small fuel lines on the carburetors etc in the '99 90hp motor? A quick search on iboats.com gave me lots of data that I wasn't looking for. Maybe I can do an advanced search but if someone knows of a nice table listing...
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    '99 Merc stalling out on fast takeoff, smooth takeoff ok

    I've got a 99 Merc 90 hp. If I am sitting idle and slam the throttle forward the motor stalls out. If I put it in gear and slowly increase the throttle to 2K rpm I'm able to go thru that point and run full throttle 5K-6K rpm no problem. I ran some Sea Foam thru the fuel line and it fixed the...
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    2000 Merc 90hp will not take lube for steering rack

    I'm trying to do some lubing of the steering rack on my 2000 3cyl Merc 90. Problem is that when I put the grease gun into those fittings I am unable to pump any grease thru them into the rack. I've removed the fittings and verified that I can get grease thru them but when I put them back I...
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    loctite 1 = red? for waterpump recommendation?

    I'm replacing my water pump in my 2000 90hp carbed merc. I have the whole kit. The instructions say to use loctite #1. Looking at loctite information I see loctite red and blue but no mention of #1. I would assume #1 is red, but not sure. I read up on red and it says it takes heat to...
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