Hi,
I'm back for more of your expert advice. After this doo, I think I'll stick to PC's. I have 93 seadoo XP. I just finished installing a new sbt motor in it. While I had the ski apart, I decided to rebuild the carbs. In the process I discovered the needle valves had rings around them, so I replaced them with new ones (2.0) 's I bolted the carbs down after the rebuild, but when I went to test the engine, it would not fire. After several attempts I decided to remove the plugs, which were also new. and check them. They seemed rather wet, so I hit the starter and to my surprise a LARGE amount of fuel came out of the cylinders. "Ok", "It's flooded" I thought, so I hit the starter once more and the cylinders were dry this time, so I reinstalled the plugs and tried again. Same thing. After further investigation I saw that the carbs are basicly just dumping fuel non stop in great excess. I called a friend who said he thought you had to "Condition" the needles or something so they would seat correctly. In any case they must not be sitting at all hardly to flood the carbs and the engine like that.
When I rebuilt the carbs, I used the original springs in order to maintain the correct pressure, and I did not adjust any screws or jets. What so you suggest?
I am thinking new carbs and go on, but this must be something simple I am missing. Is there anything special you have to do when changing the needles? and does the 93 xp in fact need 2.0's or 1.5's The originals said 2.0 but the mechanic thought they should be 1.5's I used 2.0's in the rebuild
thanks
I'm back for more of your expert advice. After this doo, I think I'll stick to PC's. I have 93 seadoo XP. I just finished installing a new sbt motor in it. While I had the ski apart, I decided to rebuild the carbs. In the process I discovered the needle valves had rings around them, so I replaced them with new ones (2.0) 's I bolted the carbs down after the rebuild, but when I went to test the engine, it would not fire. After several attempts I decided to remove the plugs, which were also new. and check them. They seemed rather wet, so I hit the starter and to my surprise a LARGE amount of fuel came out of the cylinders. "Ok", "It's flooded" I thought, so I hit the starter once more and the cylinders were dry this time, so I reinstalled the plugs and tried again. Same thing. After further investigation I saw that the carbs are basicly just dumping fuel non stop in great excess. I called a friend who said he thought you had to "Condition" the needles or something so they would seat correctly. In any case they must not be sitting at all hardly to flood the carbs and the engine like that.
When I rebuilt the carbs, I used the original springs in order to maintain the correct pressure, and I did not adjust any screws or jets. What so you suggest?
I am thinking new carbs and go on, but this must be something simple I am missing. Is there anything special you have to do when changing the needles? and does the 93 xp in fact need 2.0's or 1.5's The originals said 2.0 but the mechanic thought they should be 1.5's I used 2.0's in the rebuild
thanks
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