2005 Honda Aquatrax Wanting to Buck ~48MPH - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
 
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Old 04-29-2019, 07:46 PM Thread Starter
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2005 Honda Aquatrax Wanting to Buck ~48MPH

Hey all,

I'm new to the world of owning a PWC. However i do have a good mechanical background with different DIY projects so im not afraid of a little work . Anyways, I have a 2005 Honda Aquatrax R-12x that has an issue. Around 45-50 MPH, it starts to buck and porpoise uncontrollably. There are a few things that i am pointing fingers at, but haven't been able to come upon a solution with some google research. Culprit #1: The owner before me somehow broke the intake grate. Half of it is missing. I only have the rear part with the scoop that is bolted to the bottom of the ski. All of the bars are missing from the grate, but i ground them down to where it was smooth. Culprit #2: The underneath of the ski is in pretty rough shape. There is some exposed fiber-glass that may need some attention (Photos will be posted when I get home and can grab them). Based upon you guys's experience, what would I need to be focusing on right now?

Thanks!
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Old 04-30-2019, 11:08 AM Thread Starter
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I guess i will not be posting photos since it is against the forum rules. Is there another way i can show what exactly we're up against?
Thanks
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Old 04-30-2019, 04:58 PM Thread Starter
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Okay, so i just discovered that i CAN post photos. Here they are:

In regards to the hull damage, is this bad enough to where it needs to be addressed before i run it again? Or could i run it through the season and repair it over the winter with a new gel coat?
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Old 05-01-2019, 06:54 AM
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That grate can make a difference, so I would find another one. I would get some long strand bondo glass and do something with the large one. Shouldn't take much to fill it, then prime and paint with some black rustoleum, and do a quick spray to any other small chip areas that are into the substraight. If it keeps getting wet, eventually the layers of glass will start delaminating from each other.
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Old 05-01-2019, 09:10 AM Thread Starter
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Quote:
Originally Posted by rodsatheart View Post
That grate can make a difference, so I would find another one. I would get some long strand bondo glass and do something with the large one. Shouldn't take much to fill it, then prime and paint with some black rustoleum, and do a quick spray to any other small chip areas that are into the substraight. If it keeps getting wet, eventually the layers of glass will start delaminating from each other.
Okay, that makes sense. I do believe the hull has a gel coating. Is that something that will need to be applied after the bondo and primer? Or will the Bondo and primer be okay as is?
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Old 05-01-2019, 10:31 AM
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Originally the hull was prob. gel coat, but it's been painted, with what is anyone's guess, but prob not gel coat. just make sure it's preped good so the primmer and paint will stick. No finer than a 400 grit paper for final sand, and change it frequently. When sanding is done, hit it real quick with a fresh piece..
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Old 05-01-2019, 11:25 AM Thread Starter
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Originally Posted by rodsatheart View Post
Originally the hull was prob. gel coat, but it's been painted, with what is anyone's guess, but prob not gel coat. just make sure it's preped good so the primmer and paint will stick. No finer than a 400 grit paper for final sand, and change it frequently. When sanding is done, hit it real quick with a fresh piece..
Sounds like a plan. Also, what would be your recommendation for a new intake grate? I'm looking for good hookup out of the hole and good cornering. Not too concerned with top speed all to much. (Within reason, I would still like to be able to hit around 55 or better)
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Old 05-02-2019, 09:44 AM
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Looks like porpoising is a issue with it. There have been folks to mod the ride plate to help, and at one time there were a couple of manufactures for aftermarket ride plates. Looks like Jet Dynamics and R&D. May have been others, but not seeing any aftermarket ones.

https://www.ebay.com/itm/04C19-Honda...cAAOSwESdcfrrV

I would also get a Solas impeller for it HA-CD-17/29. Between that and the grate, you should see a big difference in hook up. If you have the tools, I would do a little more work to that grate like knife edge the leading edges, and the scoop and do a little polishing.Would be nice if the pump shoe was out so you could do any ness. blending, polishing, and de burring through the pump.
You will also have to source the 2 front grate bolts.
I'm also seeing that you can shim the rear bolts of the plate with a thin washer to drop it some, just be careful tightening the bolts as all 4 locations will now lose a little contact area. This is what some folks do with Kawi's zxi's which porpoise badly at speed.
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Old 05-02-2019, 09:52 AM
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Old 05-02-2019, 11:13 AM Thread Starter
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Originally Posted by rodsatheart View Post
If you have the tools, I would do a little more work to that grate like knife edge the leading edges, and the scoop and do a little polishing.
Are you talking about the current grate that is on the ski?
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