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  1. #1
    dcuhpw's Avatar
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    15f Restoration on Guam

    Hello all,

    Back again for the next project. Will really need your help along the way since Iím not too familiar with the 15f. I have about 4 weeks to get this project done and that includes ordering parts that take about 5 business days to get here. Greenhulk store and kawi performance both ship here. Also have an account with partzilla and can get used Japanese kawi parts easily enough.

    Here is the ski info: 2010 STX 15f with about 60hrs on the clock. Also came with a parts ski. An 09 stx I believe (missing a lot of trim pieces to identify it but it has the 09+ style valve cover and the 1.5 engine with a one piece seat. Will be stripping off some of the parts from the parts ski tomorrow then will throw out the hull and work in the 15f. First off, what all should I pull from the parts ski?

    Both skis were hardly maintained and were used by the local fire department as rescue skis. They get new skis every year so they have low hours but other than that they considered them to be disposable skis. Here are a couple of pics of what Iím working with. Will start by thoroughly cleaning and organizing the parts. Let me know if anyone needs anything from the parts ski. Engine has 40 hrs I believe.


  2. #2
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  3. #3
    dcuhpw's Avatar
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    Just pulled parts from the stx hull.
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  4. #4
    dcuhpw's Avatar
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    Always pressure test your cooling system 😂
    Will be picking up the 15f tomorrow
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  5. #5
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    That saltwater tears up everything. Perhaps they could hire you to come by periodically and maintain them. Just spraying them down with a preservative every month would be a big help.

    Looks like you'll definitely need some exhaust system parts. Do the displays work? I'd be amazed if they do. With so little use, I'd expect the fuel pumps are probably gummed up badly, as well as fuel filter. Injectors will probably need a good cleaning/replacement. I'd order the O-rings & grommets for the injectors. I've pretty much made it standard procedure to replace the starter when I pull an engine. Those are 10 years old and probably rusted badly, even inside. See if there is any corrosion inside the front cover, you may need a starter clutch, too.

    Good luck!

  6. #6
    dcuhpw's Avatar
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    Quote Originally Posted by steve45 View Post
    That saltwater tears up everything. Perhaps they could hire you to come by periodically and maintain them. Just spraying them down with a preservative every month would be a big help.

    Looks like you'll definitely need some exhaust system parts. Do the displays work? I'd be amazed if they do. With so little use, I'd expect the fuel pumps are probably gummed up badly, as well as fuel filter. Injectors will probably need a good cleaning/replacement. I'd order the O-rings & grommets for the injectors. I've pretty much made it standard procedure to replace the starter when I pull an engine. Those are 10 years old and probably rusted badly, even inside. See if there is any corrosion inside the front cover, you may need a starter clutch, too.

    Good luck!

    Fortunately this isn’t the engine/ski I’m building. This is just a parts ski that I wanted to pull the parts from before scraping it incase the other ski needs any parts to be complete. The ski I’ll be rebuilding is a 10’ 15f in similar condition. The engine in this one had a massive ants nest in almost all the cooling jackets and cylinders. If I can find a good machine shop, I’ll have the head and block tank-cleaned for use as spare parts. The timing chain, cams and “lifters/tappets (not sure what those valve spring covers are called), are rusted solid. Engine has nothing but milky oil so I suspect it sunk at some point. That hull is really nice though!

  7. #7
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    Picked up the new ski and started working on it. Just ordered a bunch of parts from kawi paper formance and the greenhulk store. Engine is in. Sry nice condition on the new ski. Will be pulling the engine and replacing all outer manifold and cover gaskets. Pretty much every gasket except the head and cylinder ones. Am going to repaint the engine and replace all bolts with 316 stainless. Also installing an updated crank support cooler with the screw in barbs and an upgraded bearings along with all seals.
    Really not sure what to do with the jet pump yet. The housing is good but obviously needs a rebuild. Salt water has lifted the liner slightly also. Was wanting a solas pump but they are pricey. May go with a new updated oem pump. The engine will have to run on 87 so I’m not planning on bumping up the compression. I did order the air intake kit and may add the thermal barrier kit if it’s worth while. I’d like to just run a consistent and reliable ski but would love a bit more speed and acceleration out of it also.

  8. #8
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  9. #9
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    Just placed several orders with greenhulk store, kawi performance and tbm. Hope to have most of the parts in about a week or so. Sending off my gauges to have them refurbished. In the mean time, I’m stripping down the hull and will be thoroughly cleaning everything before prepping and painting the top deck. Going with a single stage urethrane over the upper deck gelcoat. Will be doing the deck in a granite grey single stage and the hood and knee trim in some leftover 2020 Aston Martin cinnabar Orange. The Orange will be a base and clear. Next will be restoring the steering column and all other trim pieces. Pictures coming over the next few days.

  10. #10
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    Continued the tear down this afternoon. Completely disassembled and rebuilt the steering column and reverse shifter while I was in there. Removed the shafts and cleaned all the salt build up off the housings and bores. Polished the shafts and cleaned up all the threads. Reinstalled everything with generous quantities of true marine grease. Every drop of trim is off of the upper deck. Now just working on tediously removing all the decals along with the traction mats.
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