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CAVECLOTH

Tilt/Trim won't work on new to me boat

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Hey guys, I got really lucky and bought a boat from my friend's dad a couple of days ago.

He put a '99 Yammy 50/35 jet on it, ran it a handful of times, and then stored it for years due to health problems.

It was a little tricky to get it running, but it runs great now.

I have two issues to fix with the motor:

1. It dies a idle unless you give it a little throttle

2. The tilt/trim does nothing. No clicking, no sound, nothing. But the key start works perfectly.

With the tilt/trim, do you think it's as simple as replacing the relay?

Please chime in with suggestions!

Thank you

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I'm kind of wondering if a jet needs a trim and tilt...I know the really big jets in the PNW have that function so the guides can trim the motors up and spray down their buddies, but on a 50?

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7 minutes ago, kjackson said:

I'm kind of wondering if a jet needs a trim and tilt...I know the really big jets in the PNW have that function so the guides can trim the motors up and spray down their buddies, but on a 50?

My 40 jet has trim and tilt as do most I see on the rivers.  If you run a whale tail you definitely need it. 

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59 minutes ago, snagged in outlet 3 said:

My 40 jet has trim and tilt as do most I see on the rivers.  If you run a whale tail you definitely need it. 

Has your trim/tilt ever just stopped working? Without clicking or any other sound?

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You need to test the voltage from the battery through the trim motor circuit.

If you don't have a workable understanding of how it all works then your best bet is to either study and learn....or take it to someone who does.

As for the idling issue, probably just needs a minor idle mixture adjustment.  

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Trim/tilt on jets are the berries.  You can jack the motor up and clean the grates without getting out of the boat.  Bottom of motor still sets below the boat line, so trimming it up while drifting helps the float.  And, since the foot sets so tight against the boat, trimming it up gives you room to put the plug in.

It does not really do much to trim the boat out on plane.  And, if there is a cow on the bank, you can do a pump dump to wash it off.

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40 minutes ago, snagged in outlet 3 said:

Trimming up the motor on a jet when accelerating decreases drag and running depth and  increases speed. IMO 

Well, it depends on how your boat is loaded on that particular day.  Once you run flat out and adjust trim angle for the best ride you should leave it at that setting for the rest of the day and avoid touching the trim switch unless you move a heavy cooler around or do something else to alter your load placement. 

Where you can hurt yourself is by trying to get transom lift for running extremely shallow....which pushes the bow down.  Operating at a trim angle like that can cause you to "loose your posterior", literally.

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