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  1. Thread: boost loss

    by mattjw76
    Replies
    14
    Views
    5,920

    Re: boost loss

    Thanks for the reply! I do have an autometer marine boost gauge. It was reading 12 PSI(WOT) before this happened. I had been cruising at 55 MPH(about 3/4) throttle for ~ min. Probably 10 PSI or...
  2. Thread: boost loss

    by mattjw76
    Replies
    14
    Views
    5,920

    Re: boost loss

    Did you ever find a solution? I'm having the exact same issue. No codes... Won't build any boost. Turbo is not seized(impellers are all fine. Shaft feels tight but spins freely and sounds...
  3. Replies
    6
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    984

    Re: R12x hull repair

    I used standard black polyester gelcoat.. Something like this:
    ...
  4. Replies
    219
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    56,907

    Re: Turbo Aquatrax ECU alternative thread

    He only posted the fuel table not the ignition..
  5. Replies
    219
    Views
    56,907

    Re: Turbo Aquatrax ECU alternative thread

    Gen-Tune posted this screenshot of a factory fuel table a while back. Look at attachment on the last post on this page:

    http://www.pwctoday.com/showthread.php?t=470009&page=7
  6. Replies
    62
    Views
    10,939

    Re: Wtf is it w everyone wanting 4 strokes?

    Yeah, my brother-in-law has two Ultra 250s. He blew one up(the intercooler developed a leak and was dumping sea water into the engine) and we did a rebuild on it. What he had to pay for the parts...
  7. Replies
    62
    Views
    10,939

    Re: Wtf is it w everyone wanting 4 strokes?

    Many years back I had a Yamaha Waveblaster II 760 and I very distinctly recall it sucking through 13 gallons of fuel in 2 hours. This was the norm and not the exception. The ski was fun(quick) but...
  8. Replies
    20
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    4,780

    Re: My trailer project

    I took it out today and got it inspected.. Snapped a few more pics also...
    ...
  9. Replies
    20
    Views
    4,780

    Re: My trailer project

    I honestly didn't know about the corrosion issue until I saw the earlier reply about it. I could pull up those deck boards and put some 1/8" rubber strips between them and the alum. As for the...
  10. Replies
    20
    Views
    4,780

    My trailer project

    Every summer we make several 6+ hour trips to my parent's riverhouse. Usually this means that the Expedition is stuffed to the ceiling with knee boards, wake boards, suit cases, a dog, two kids, my...
  11. Re: Aquatrax F12(x) Debth Finder Transducer Location

    What brand is that? I tried that 1st and it didn't work at all. Then I tried it in the ride plate and it worked about 40% of the time. Mine is a HawkEye..
  12. Re: Aquatrax F12(x) Debth Finder Transducer Location

    Just wanted to follow up. The ride plate location ended up not being so great. The debth finder did not work reliably. I finally broke down and pulled the engine so that I could glue it in the...
  13. Replies
    3
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    1,203

    Re: Reverse modification

    I finally found a pic of what I did.. I don't think this is your issue though if yours moves easily with the engine off..
    ...
  14. Replies
    3
    Views
    1,203

    Re: Reverse modification

    My red ski was really difficult to put in reverse. If you loosened up the assembly it felt like the nut would never stay. I remember drilling it out(can't recall if it was the nut or ride plate)...
  15. Replies
    219
    Views
    56,907

    Re: Turbo Aquatrax ECU alternative thread

    This is fantastic! I need to pick up another broken ski to do this to. Are you just using a stock cam sensor with two teeth ground off?
  16. Replies
    219
    Views
    56,907

    Re: Turbo Aquatrax ECU alternative thread

    Very cool! Thanks for the updates.
  17. Replies
    10
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    2,059

    Re: Resurrecting 2002 Aquatrax....Need Help

    Agreed.. I paid $600 for my non-running 06 F12x with 52 hours, trailer and title.. If you want good $$ you have to part it out..
  18. Replies
    87
    Views
    53,201

    Re: Honda Jetski ECU

    That's really cool! Are the 4 maps similar? Maybe it has a table for each cylinder. Also, I'm surprised the numbers differ so much Turbo to non Turbo. There must be some other constants that are...
  19. Replies
    87
    Views
    53,201

    Re: Honda Jetski ECU

    Very cool. I was hoping you would dig into that. Any idea how high the VE table goes into boost/rpm?
  20. Re: I picked up another Aquatrax - 2005 F12x Blue

    Williamsport. That is the Susquehanna. I'm about 2 hours from Raystown. I've been to Raystown Lake but that was a good 15 years ago...
  21. Re: I picked up another Aquatrax - 2005 F12x Blue

    I put new plugs in it and ran it quite a bit today. Much better! It now runs neck to neck with the red one.

    Cool pic from the day:
    ...
  22. Replies
    50
    Views
    8,346

    Re: Rebuilt Aquatrax f12x turbo engine!

    Did you ever get this figured out?
  23. Re: I picked up another Aquatrax - 2005 F12x Blue

    Check out this thread. It has pictures and an explanation of what I do to fix them...

    http://www.pwctoday.com/showthread.php?t=480264&highlight=

    I put 30 hours on the 1st manifold I repaired...
  24. Re: Possible first pwc (1996 Yamaha Wave Blaster 2)

    I used to have a 1996 WaveBlaster II 760. I served me well and I never had any issues. My biggest gripe was fuel usage as it can be quite thirsty. It was definitely a fun ride. Very light and...
  25. Re: I picked up another Aquatrax - 2005 F12x Blue

    I put it in the river tonight. It ran well, didn't take on any water in the hull or the oil, but it's not as fast as my red one. I'll start with new plugs and see what that does.. Also I'm not...
  26. Re: I picked up another Aquatrax - 2005 F12x Blue

    So here is the transducer glued into place. I cut through the inner hull, scraped away the foam, sanded the outer hull, then glued it in with clear slow-cure epoxy... I hope it works...
    ...
  27. Re: I picked up another Aquatrax - 2005 F12x Blue

    If you happen to come across an 05 or newer broken R-12x for a good price that you don't want to buy LMK...
  28. Replies
    4
    Views
    1,200

    Re: valve lash adjustment? F12x

    I found my Amazon order.. This is the kit I used: Hot Cams HCSHIM01 Shim Kit

    https://www.amazon.com/gp/product/B000UKM6LG/ref=od_aui_detailpages00?ie=UTF8&psc=1
  29. Replies
    4
    Views
    1,200

    Re: valve lash adjustment? F12x

    I have a Hot Cams kit that I used on my F12X. I'll take a pic of it tomorrow and post it here..
  30. Re: I picked up another Aquatrax - 2005 F12x Blue

    It's alive!


    https://www.youtube.com/watch?v=ICqWumpTDl4
  31. Re: I picked up another Aquatrax - 2005 F12x Blue

    Just looked it up on a map.. Looks like it was probably the same one..
  32. Replies
    14
    Views
    2,805

    Re: Rotted out Exhaust manifolds F12/R12

    I thought about making a replacement manifold but it would be a total PITA to build and I seriously doubt it would flow as well as the factory manifold. I can CAD the flanges up for you and send...
  33. Re: I picked up another Aquatrax - 2005 F12x Blue

    It was down in King George, VA.
  34. Re: I picked up another Aquatrax - 2005 F12x Blue

    I took the day off work yesterday and spent all day on the ski.. My goal was to get the engine out, flushed, cleaned up, repaired manifold installed and put back in. Unfortunately my OCD kicked in...
  35. Replies
    14
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    2,805

    Re: Rotted out Exhaust manifolds F12/R12

    It pressure checked fine. I picked up a 2nd ski and will be installing this manifold on that ski tomorrow. If all goes well it will be on the river this weekend..
  36. Replies
    6
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    1,837

    Re: Exhaust Manifold

    I'd be interested in the old manifolds if you end up getting rid of them.
  37. Re: Exhaust Manifold... anybody ever try to fix one?

    I fixed two so far. I just picked up another ski with a bad manifold so I'll be fixing that one also. If your dad is patient and doesn't mind the old weld, grind, re-weld dance he will be able to...
  38. I picked up another Aquatrax - 2005 F12x Blue

    Here are some pictures as purchased.. It was 20 minutes from my parents riverhouse. My dad picked it up for me but then I had to wait till he was coming back to PA to get my hands on it. He...
  39. Replies
    5
    Views
    1,212

    Re: pictures of rotted exhaust manifold

    I've repaired two now and they both looked very similar inside. The leaks on both of these have been along the bottom where water would lay when the ski is not in use...

    Pics are in this thread: ...
  40. Replies
    20
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    1,524

    Re: Reverse bucket operation at idle

    Mine works Ok also. It takes a bit of effort to get it to move initially but once it releases it moves easily I did have to put a new reverse cable in at as it was bound up when I got it.

    I'm a...
  41. Re: Aquatrax F12(x) Debth Finder Transducer Location

    Well I ended up mounting it toward the back of the ride plate and it seems to be working fine.. Even at 60 MPH..
    ...
  42. Replies
    5
    Views
    974

    Re: Honda Aquatrax Gauge Mounts

    So I decided that I wanted GPS while I'm out where the river meets the bay. Once you get a few miles out everything looks the same and it's easy to get disorientated..

    Old iphone 5s phone.... ...
  43. Replies
    14
    Views
    2,805

    Re: Rotted out Exhaust manifolds F12/R12

    Thanks.. I'm no expert by any means. I have a friend that TIG welded full-time for a number of years. He has several welding certifications and is a year away from havings his bachelors in welding...
  44. Replies
    14
    Views
    2,805

    Re: Rotted out Exhaust manifolds F12/R12

    It's all closed up now. Next step is to pressure check the water jacket but I'm pretty sure it will be fine..
    ...
  45. Replies
    14
    Views
    2,805

    Re: Rotted out Exhaust manifolds F12/R12

    I decided on this one to beef up the bottom of the inside tube where all of the corrosion seems to occur. Not only did this add more metal to the bottom of the tube but it also made it easy to find...
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