Thread: Reliability of the STX F12?
01-17-2014, 10:05 AM #1
Reliability of the STX F12?
I found a 2007 STX F12 with only 29 hours. I have never owned a Kawi so I just have a few questions for the experts on here....
1) How reliable is this ski?
2) GPS top speed?
3) How stable is this ski for 2 riders?
THANK YOU for all helpful comments!!
Last edited by driveumhard; 01-17-2014 at 10:58 AM. Reason: sp
01-17-2014, 10:45 AM #2
Last edited by meangreenman; 01-17-2014 at 12:04 PM.
01-17-2014, 10:56 AM #3
250 hours on my 2004 12f with no issues.
01-17-2014, 10:57 AM #4
Is the jetpump bearing a pain to check? I'm guessing you need to pull the pump?? Thanks!!
01-17-2014, 12:02 PM #5
01-18-2014, 01:19 PM #6
I had a 03, the first year and it was a very reliable ski. I later bought a 08 15f and it had a noticeable more bottom end but was only about 5 mph faster on top end.
01-18-2014, 02:00 PM #7
Since you are looking at a 2007, the pump needs to be pulled. If I were you, I will just replace the bearings (relatevely cheap) anyway if they are the original from the factory. Why waste all the labor time you spent just to get there? Then you are good for next 100+ hours on 12F.
Here is the impeller tool that you would need to remove the impeller to get to the bearings.
Here is a general layout of parts associated with the jet pump for 2012+ 15F. The 2007 12 has only one front bearing whereas shown below has 2 front bearings indicated by the red arrows.
Last edited by meangreenman; 01-18-2014 at 11:27 PM.
01-18-2014, 02:21 PM #8
01-19-2014, 10:23 AM #9
I've been reading about some guys changing these pump bearings every two years!! Is that really necessary? What is the main factor that makes these bearings fail???
01-19-2014, 11:49 AM #10
I have not had to change the bearings in my 12f ever and its an 04 with 250hrs, do I recommend waiting that long? No but I keep an eye on my stuff
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