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1997 Ski Nautique Won't Stay Running |
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WLskinautique 
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Joined: July-26-2021 Location: republic, mi Status: Offline Points: 2 |
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 Topic: 1997 Ski Nautique Won't Stay RunningPosted: July-27-2021 at 5:07pm |
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1997 Ski Nautique
The engine turns over and will start if throttle is juiced a little bit. Once I pull back the throttle to idle, the boat dies. Kill switch circuit was just replaced. Any other suggestions or ideas on the issue? Please reply and I'll answer any questions! Thanks everyone!
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11155 |
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Posted: July-27-2021 at 6:37pm |
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Will the engine stay running in neutral at say 1500 RPM and only stall if you lower the speed?
If that's the case, and it's injected, as a start, I'd probably look at the ISC/BPA solenoid Translated, that would be the idle speed control/bypass air solenoid. It controls the idle through a signal from the ECM when the butterfly valve in the throttle body is closed. It bypasses air around the butterfly valve to give the engine air to run on at idle. Above idle, the air is coming in through the butterfly valve in the throttle body You can read about it in the GT40 manual in the reference section Click the link below to get to the manual |
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11155 |
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Posted: July-29-2021 at 7:27pm |
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Since you're doing the CCF/PN shotgun approach, I see over there that it has a carburetor so you can forget the above stuff and if you post back here again, it should be relatively easy to solve your issue
More info would help too. Was it running good and just developed the issue? Same question as before, will it run at 1500 rpm in neutral without stalling? Smooth or kinda ragged? Is there excess gas spilling down the primaries or secondaries while it's running? After it stalls, is there gas spilling down the primaries or secondaries? So many questions
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