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Old 05-06-2012, 04:24 PM   #1
merrile
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Default Tiller Outboard steering adjustment

Everytime I let go of the handle the motor turns pretty quick and I end up doing circles. Is there an adjustment trolling is really difficult sometimes I have a 25 hp merc mariner

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Old 05-06-2012, 06:50 PM   #2
swampy
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Default Re: Tiller Outboard steering adjustment

I can adjust the tension on my 9.9. I'd guess you can on yours as well. Tighten it up and it won't move when you let go.
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Old 05-07-2012, 05:23 AM   #3
stevo
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Default Re: Tiller Outboard steering adjustment

There should be some type of tension adjust knob that will tightne up your steering to the point of locking the motor in place if you want. That said my last boat main motor, 115hp Johnson, had nothing like this. I rigged up a piece of PVC that connected to a spare rod holder base, held the motor straight for trolling or anchor fishing.
Good luck.
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Old 05-07-2012, 07:49 AM   #4
blummer08
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Default Re: Tiller Outboard steering adjustment

Yes I have an 07 15 horse Big Foot Merc and at the front of the motor down by the brackets that fasten it to the boat is a lever that slides left and right this is the steering tension adjustment. Hope thiis helps
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Old 05-07-2012, 08:20 AM   #5
Tony Micelli
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Default Re: Tiller Outboard steering adjustment

Do you find yourself fighting the handle when running? If so, there may be a small plate with a fin on it below your cavitation plate. Try rotating that plate opposite the direction your motor turns, a little at a time until the motor tracks straight. And, adjust the tension on the little handle at the base of the power head as others have suggested. You may have to tighten the nut that holds that handle down.

Good luck!
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Old 05-07-2012, 03:06 PM   #6
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Default Re: Tiller Outboard steering adjustment

Quote:
there may be a small plate with a fin on it below your cavitation plate. Try rotating that plate opposite the direction your motor turns, a little at a time until the motor tracks straight.
My old 25 Merc had one. It's actually the zinc anode, and the fin is the first part to wear off with age. Your fin may be gone, or just not pointed in the right direction.
I had the same problem with mine. I let go of the tiller once at full speed just to see what happened. Let's just say I didn't do it again.

The steering tension is controlled by what Merc calls a "co-pilot". It's the bolt at the top of the stem (or steering tube or whatever). I always had to adjust mine depending on what I was doing. Tight enough for hi speed was too tight for trolling etc etc.
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