99 GTX RFI - Hard to start

[ahm2kewl]

Hi everyone,
Just wanted to share my issues and how I was able to fix it.(got lucky )
replaced the rectifier to fix the charging issue. When it ran, I could only go to 5200 RPM and when I stop, it would have a hard time starting while in the water but fine out of the water. Jet pump was fine. Had someone plug it in their computer and there was aTPS error. He reset it and it ran fine until I stopped while on the water. Had to get towed back because it had a hard time starting and would not stay running even if you has it.
I decided to buy a new TPS. Check and compared the reading between the old and new TPS. Way different from each other. Installed the new TPS and she runs good now. Only issue now is it doesn’t hold the idle but it fires up right away. A friend will reset the TPS on it tomorrow and hope that it holds the idle after that.

 

[etemplet]

Don't know if you have done this previously but you have to back the idle screw out so it does not touch the landing connected to the butterfly. This will allow the butterfly on the throttle body to close all the way which is necessary to set the TPS properly. Be careful because lots of times I find the idle adjustment screw to be stuck or broken off. I live in the south so many of the ski see a bit of salt water. Good Luck with it.

 

[ahm2kewl]

Don't know if you have done this previously but you have to back the idle screw out so it does not touch the landing connected to the butterfly. This will allow the butterfly on the throttle body to close all the way which is necessary to set the TPS properly. Be careful because lots of times I find the idle adjustment screw to be stuck or broken off. I live in the south so many of the ski see a bit of salt water. Good Luck with it.

Thank you . That’s really good info. We only have fresh water lakes here in AZ.