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Thread: My GPRXP build

  1. #301
    John's truck's Avatar
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    Quote Originally Posted by K447 View Post
    If you have a local battery store that sells lots of powersports size batteries they probably have some of those non-captive nuts laying around loose, left over or fallen out from other new or dead/old/returned/warranty batteries.

    Bring in the remaining square nut as a sample.

    I would imagine they would just give you a few.

    I thought about it today, but the Nearest one is a bit of a drive. The ones I ordered should be here tomorrow though. It’s just weird... Tractor supply was the only store that actually had the lawn/motorsports batteries but no luck there either. These stupid things fall out all the time but nobody seems to sell them. Guess I’ll just have to keep a bag of the spares.

    Fuel system wise, I realize I no longer have a filter after the pump. I may add one in closer to the fuel rail. Just an in line AN filter or something. But I may wait until I get a new fuel rail and switch the fuel system around to a flow-through instead of dead-head.

  2. #302
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by John's truck View Post
    … These stupid things fall out all the time …
    Squirt a dob of silicone or similar underneath the nut with the bolt snugged (no cable yet). Let it set, then each nut should stay put when the bolt is removed. You can do this with a new battery before you put it into the hull.

    As an alternative you can inject hot-melt glue under the nut in the same manner. Just make sure the bolt is fully inserted beforehand so there is room for the thread length when you are later attaching the cable to the battery.


    One of the reasons I like the Deka ETX series AGM battery is that there is no loose nut, the bolts thread right into the post.

    Odyssey brand powersports batteries also have no loose nuts, bolt threads right into the post top.

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  4. #303
    John's truck's Avatar
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    Well the battery nuts I ordered got delayed. So I took a regular hex nut, filed it down and then dropped it in the hull . So I took another, filed it down, and hooked the battery up. Put on the DESS, listened to the pump take prime and then saw a nice big leak on the 90 leaving the sender. The swivel seal on the AN 90 let go. So I just ordered a 2 pack and should have them this week. I need to blow out the cooling system tomorrow or the day after. We have a freeze coming this week.

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  5. #304
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    Well these stupid things showed up. I am going to glue/silicone them in to the battery posts. But, now Im waiting on a 90 degree AN6 fuel fitting before I can try to fire it back up.

    On the plus side, when I did put the key on, I heard the fuel pump catch prime really quick and pushed fuel. Downside was it leaked. But my electrical work worked.

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  6. #305
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    Well I winterized the ski today. We’re supposed to have a freeze tonight and then a couple nights next week. When the fuel fittings show up I can hook up the fuel system, test that, maybe start the ski to idle it and then shut it down and fog the cylinders and pull the battery out for the winter.

  7. #306
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    Well the AN6 90s I ordered showed up, so I went over to the storage and installed, hooked up the battery, and tried to fire the ski up. I kinda forgot I put oil in the cylinders and had left the water box disconnected. So antifreeze kinda went a lot of places. Anyways I hooked it all back up, started it and revved it. Talk about a smoke screen. Anyways the fuel pressure holds damn solid at 58-59. So I could go ride the ski just like this and test to make sure AFRs are good. But its cold out now. And Im putting the factory ECU up for sale so if anyone wants to buy it, message me. Daddy wants a Fueltech FT450 for Xmas

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  8. #307
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    Well Im not making much progress on the ski, so I decided to redo my degree wheel. This time I downloaded a better template and engraved it out of brass sheet. I need to drill and bolt it to the clamp.



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  10. #308
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    Finished. Now I have a degree wheel I can clamp on to the midshaft

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  12. #309
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quote Originally Posted by John's truck View Post
    Finished. Now I have a degree wheel I can clamp on to the midshaft

    That turned out great, nice work

    Sean

  13. #310
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    Quote Originally Posted by smokeysevin View Post
    That turned out great, nice work

    Sean
    Thanks. Im sure the plastic one would have done the job OK but it was a little… lame. I need to pull the battery out of the ski to put it on a tender, So when I go over there I’ll figure out what I’m doing for a needle/mark on the ski side. The midshaft bearing housing has a threaded hole up top so it might just be a simple metal arrow. And I guess I need a spark plug extended wire, oh and a crank lock tool to set for setting TDC


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