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  1. #1

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    1999 Genesis - Where did the power go?

    I've had a 1999 Polaris Genesis for 3 years now with no problems, it's been a great machine. The battery went south on my and I went to replace it. They didn't have the exact battery I needed but gave me one similar and was told it was a better battery. Since that time I have nothing on the high end. The machine starts fine and runs fine on the low end but at full throttle I only reach about 25 mph. I have nothing on the top end. Is it related to the battery or do I have something else going on????


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Welcome

    Fuel injected or carburetor engine?

    What RPM are you seeing at full throttle in the water?

    On the trailer does it rev freely to over 6000 RPM?

    Any messages on the display? Reverse?

  3. #3

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    Thank you for the welcome, I'm glad I found the site. Thank you for responding. I've read your responses to other's questions and I can tell you know your stuff. The '99 Polaris Genesis x45 is a 3 passenger machine and it does have reverse. In fact, it acts as though the reverse is partially engaged when you first start with the way it sounds and acts but I have checked that multiple times. Even the way the water comes out of the jet looks like the reverse may be engaged but it is not. There are no messages or blinking red light telling me it is in reverse.

    The engine is a 3 cylinder engine and I believe it is fuel injected. The display is both digital and with a needle although the needle only tells you speed. When I toggle through the digital to look at the RPM the first digit is abscent and the remaining three are 000. I get the same reading on the trailer. This did not happen before I replaced the battery. I should have stayed with jump starting it.....

    Any thoughts?

  4. #4
    Quote Originally Posted by timeoff View Post
    Thank you for the welcome, I'm glad I found the site. Thank you for responding. I've read your responses to other's questions and I can tell you know your stuff. The '99 Polaris Genesis x45 is a 3 passenger machine and it does have reverse. In fact, it acts as though the reverse is partially engaged when you first start with the way it sounds and acts but I have checked that multiple times. Even the way the water comes out of the jet looks like the reverse may be engaged but it is not. There are no messages or blinking red light telling me it is in reverse.

    The engine is a 3 cylinder engine and I believe it is fuel injected. The display is both digital and with a needle although the needle only tells you speed. When I toggle through the digital to look at the RPM the first digit is abscent and the remaining three are 000. I get the same reading on the trailer. This did not happen before I replaced the battery. I should have stayed with jump starting it.....

    Any thoughts?

    Do you have a Genesis or an X45? What color is it?

    The Genesis is a 4-seat machine with electric reverse.

    The X45 is really just an SLTX with a 1200 motor - a three seater with a manual reverse lever.


    You need to do a compression test on that engine ASAP!

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Jump starting these machines is an excellent way to damage the electronics.

    You have a Genesis, not an X45.

    Fuel injected engines have the spark plugs angled towards the flame arrestor cover. Carburetor engines have the spark plugs sticking straight up.

    Sounds like your MFI display is either damaged or confused. Unplug the connector from behind the display. Wait more than ten minutes, then reconnect. If RPM display is still wrong then you may need to replace the display.

    Note that damaged or dead displays can cause engine running problems. You can bypass the MFI display and operate the engine. My signature links should have the details.

    I think your Genesis has PERC electric reverse. Verify that the motor actually is fully lowering and raising the reverse bucket. Hold down the Bilge button to power the Reverse system with engine off.

    Do check cylinder compression. All spark plugs out, throttle held wide open. Also make sure the correct spark plugs are installed.

  6. #6

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    Thanks for the feedback and ideas. Sorry for the late reply, I've been away and not had internet access. To answer a few of the questions that have been asked

    Yes, it is definitely a Polaris Genesis, says Genesis right along the side. I saw x45 when I was looking for a manual online so thought it was part of the model. It is a Genesis and it does have electric reverse. I did check the bucket as you mentioned and it is fully lowering and fully raising. There is no obstruction once it is fully raised.

    The spark plugs are straight up and down coming out of the cylinder. I just returned tonight so I'll check compression tomorrow and let you know. I did replace the plugs with what was recommended, NGK BR8ES. Let me know if you disagree with the plugs.

    I unplugged the connector from the MFI display and waited 10 minutes and the reconnected it. It didn't seem to matter, the first digit was still MIA and the second, third and fourth digit were zeros and didn't change as I raised the rpm's. I'll check your links to bypass this to see if indeed it is the display.

    Is it possible the display is messed up with the new battery. The dealership told me it was a better battery with higher amps so it would crank the engine longer. Could this be related? Yes, shouldn't have jump started it but when you're stuck.....your stuck. I used another PWC to jump start it. It ran fine afterwards, it's only since I changed the battery that it is acting up.

    I'll get back to you on the compression.

  7. #7

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    I've done some additional tests without any positive results. Compression seems to be okay across all three cylinders. I unplugged the connector from the MFI and put a wire in the purple/white wire and the black wire as per the instructions on your signature links to bypass the MFI but the results were the same. I'm still not getting any reading on the RPM both on the side gauge as well as the meter. The volts read 13.0 when the machine is off and fluctuate between 14.2 - 15.5. Any further ideas on what I should check???

  8. #8

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    Problem resolved. Looking more and more into the issue I found that although compression was excellent across all three cylinders the middle cylinder was not running as hot as the other two. I checked for spark and it was there. It was getting fuel so I couldn't figure out what was happening although I know it wasn't firing like the outside 2. I pulled the carb and found that it had some issues. Rebuilt the carb and the machine runs like it was new. Glad to be back with all three cylinders firing with enough summer left to enjoy the lake. Thank you to everyone for your feedback and assistance.

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