Thread: 900 STS won't go above 34MPH
07-24-2011, 05:08 PM #1
900 STS won't go above 34MPH
I purchased a 900 Sts ski and had it checked by my mechanic who had told me everything was fine. When I finally took it out it ran great except it won't go above 34 MPH. The ski feels fine likes it not knocking or smoking or feeling like its going to stall. I took for a 2 hr ride with no problems at all, except it maxes out at 34MPH. My 96 STX had a screw by the throttle that you could for newer riders so they couldn't go as fast. Is there anything like that on this ski that might be causing it to be in a learning mode?
07-25-2011, 06:10 PM #2
Well, it would be real easy to pull the throttle trigger and take a look, wouldn't it?
You might also have a cylinder that's not firing.
08-05-2012, 07:02 AM #3
- Join Date
- Aug 2012
Hey I just bought the same ski,also professionally inspected on land only unfortunately.Exact same problem.
Did you ever come up with a solution?Seems like it has to be firing on just 2 cylinders.Compression is def good on all 3.
I am going to check for spark on all 3 plugs but it's too early right now,family is sleeping!
08-06-2012, 06:41 AM #4
- Join Date
- Aug 2012
Ok a little follow up.I actually figured out that the middle cylinder wasn't getting any spark.I thought I was "the man" for a little while anyway.I opened the box that houses the coils and ignitor and cleaned the heck out of all the electrical connections and bam-spark to all 3.Headed out to the lake where she ran like a beast-for 10 minutes and then totally died.Now I have NO spark at all!
My question is does anyone know where to get shop manuals for a 2001 900 STS?I can't come up with anything on Google.Is there a manual for another model that applies?I want to be able to troubleshoot this correctly before dropping the 400+ on the ignitor.
08-06-2012, 07:41 AM #5
08-06-2012, 06:21 PM #6
Sounds like you have a bad ground connection or something.
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