1999gsx - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
 
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post #1 of 4 (permalink) Old 06-08-2019, 11:00 PM Thread Starter
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1999gsx

Hey guys. I just went and took a look at a used 1999gsx. The ski looks like it’s In amazing shape, only has 42hrs on it and it’s for a good price. He ran it but only for a few seconds without a hose and I am hoping to go back and be able to test drive it as I didn’t have time today. The only thing that concerns me is that there is a white powder substance on the rave valves and I’m not sure what it is. The ski hasn’t been used in probably 5 years or more. It still has the grey fuel lines that I would replace (do you have to remove the exauhst pipe to do so?) also when we shut it off a little bit of smoke came out of one of the seals by the clamp on the pipe so I’m assuming it has a leak. What do you guys think? What is on the valves? Also he said it has never been ran in salt water just fresh water. Thanks!
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post #2 of 4 (permalink) Old 06-09-2019, 07:41 AM
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Looks like mold and mildew. Is it the same stuff that is on the rest of the engine bay ? A good cleaning is in order. What concerns me the most is the oil injection lines. I would premix some fuel at 2oz per gallon to be safe in case one breaks or comes off during the test ride. At least it will have a fighting chance.
He was right not to run it more than a few seconds with no water. Basically just fire it up to make sure it starts.
Did you do a compression check ? Pretty mandatory. A worn engine will start and idle, and even run on the water if it's not to bad. If compression is good, your willing to do some preventive maint before using it, and the price is reflective of that, it might be a good deal. I've always liked the looks of the red GSX. I'm assuming it's the carbed GSX Limited ? That's a good engine. No rotory valve, just reeds.
I'm assuming the smoke you saw came from the expansion chamber clamp by the head in the picture ?
If it's the carbed engine, the carbs will need rebuilding before use also.
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post #3 of 4 (permalink) Old 06-09-2019, 10:46 AM Thread Starter
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Thanks for the reply! Yes, he is asking $2500 here, which is a deal compared to any other ski I’ve found. You are correct on the smoke compound from the pipe and that is where it came from. I forgot my compression tester at home so will do it next time I go up for the test drive. I will pre mix a jerry can of gas just to get it through a test drive. I will have to replace fuel lines and clean the carbs as they do have grey tempo lines. The VTS and everything electronically works good too. So to do carbs and fuel lines does that pipe have to come off? And what about that little bit of smoke? Is it normal or starting to leak? Thank you
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post #4 of 4 (permalink) Old 06-09-2019, 08:44 PM
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Yes I believe the pipe needs to be out of the way. You should prob look at getting a new seal for the pipe also, and check the condition of the clamp. It should not be leaking at all. In fact, it might just be a little loose.
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