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Old 06-16-2009, 08:57 PM   #1
Bulit7
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Installing a Garmin 300C on a Waverunner - In hull transducer setup.

Unit: Garmin 300C Color Fishfinder
Transducer: transom Mount installedin the hull. (No holes)

OK, I got this unit about 6 months ago and just got around to installing it on my XLT 1200 Waverunner. Just wanted to sare since I was not sure how it was going to turn out and after the sea trial, I am pleased to report that it works great.

I did not want to transom mount it because when beaching the craft in the sand on a rough day, (anyone that has done this can attest) the 800lb craft sinks in the sand and trying to turn it is a bitch and would rip the transom mount ducer off.

I called Garmin and they suggested that I bed it down in two part epoxy. They recomended that I make a dam, pour the epoxy into it, and then bed the ducer in the epoxy. I will say that I was skeptical but had to try it.

I made the dam from 3M blue tape and mixed up an ounce of clear West System. Poured it in and set the ducer in there. About an hour later it was hard and ready to sea trial.

The hardest part was finding a spot where I coul mount it horizontally so that it would shoot thru the glass hull, straight down. The spot behind the battery was the only place suitable and so there it is.

This weekend I took my skis out with my daughter and her friend and we hit a few spots in font of Lauderdale in 35-40. It read very well with great bottom detail and fish hits. Couldn't have expected better results.

Here are a few pics::



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Old 06-16-2009, 09:47 PM   #2
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

I've been thinking about that, think it will get beat to death on the ski?
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Old 06-16-2009, 09:52 PM   #3
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

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Originally Posted by Otis Driftwood View Post
I've been thinking about that, think it will get beat to death on the ski?
LOL! Not really but you have to be carefull during jumps so you don't fall on top of it. I have my GPS mounted there too and it never fell off. I have done some 30 foot jumps too!!

This fishfinder is badass!!
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Old 06-16-2009, 09:59 PM   #4
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

I have a 96 3 seat polaris, it seems to ride rougher then what I remember from the times I've been on newer skis. Do you think there is a big difference between the old ones and the new ones?
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Old 06-16-2009, 10:44 PM   #5
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

Yes and no. Small differences. Mainly in power. Never rode a polaris.
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Old 06-16-2009, 11:00 PM   #6
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

What, no radar? Nice addition. I'm assuming you use your ski for spearing, so I'm sure you'll get some good use out of that little unit.

P.S. do you own anything that doesn't go fast, referring to your ski and the Hayabusa in your avatar.
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Old 06-16-2009, 11:03 PM   #7
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

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Originally Posted by Alexrom1207 View Post
What, no radar? Nice addition. I'm assuming you use your ski for spearing, so I'm sure you'll get some good use out of that little unit.

P.S. do you own anything that doesn't go fast, referring to your ski and the Hayabusa in your avatar.
Hummm. Got to think about that one...
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Old 06-16-2009, 11:08 PM   #8
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

does any one make trims tabs for skis?
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Old 06-17-2009, 04:22 PM   #9
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

I'm not sure if they do, but really there is no need for trim tabs. The XLT comes stock with an adjustable jet so you can trim it up and down.
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Old 06-17-2009, 07:56 PM   #10
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

are your talking about the yami that bulit mentioned to start the thread or my old ass ski. Both ar XLT
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Old 06-17-2009, 08:15 PM   #11
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

Sorry I wasn't thinking about the year when I said that. I have a 2002 XLT 800 and it has the trim on it.
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Old 06-18-2009, 06:16 AM   #12
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

2001 xlt120 has trim too. Great feature.
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Old 06-18-2009, 10:28 AM   #13
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

Looked it up my ski is actually an SLT.

So any one know of mini tirm tabs?

I looked a while back and couldn't find any.

Someone told me to shim up th back of the ride plate. Any thoughts?

Last edited by Otis Driftwood; 06-18-2009 at 10:29 AM. Reason: kant spel
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Old 06-18-2009, 10:37 AM   #14
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

Nice setup. I want to install one on my FXHO.

Joe,
Look for an aftermarket ride plate from Riva or something. I'm sure you could find something. I have noticed a pretty significant difference in ride from my ski to the newer 09 model, I think its the materials more than the design.
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Old 06-18-2009, 10:37 AM   #15
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Re: Installing a Garmin 300C on a Waverunner - In hull transducer setup.

Bulit, what mount are you using for the GPS. I just got a 60CSx which is essentially the same unit you have on the inside & same waterproofing, but doesn't float and has a different button layout. I looked at the "marine mount" from garmin but it looks unreliable. Is that the one you have in the picture?
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