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Thread: Confirmed fix for oil wicking thru stator wires

  1. #1
    just another Aprilia fanatic amauri's Avatar
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    Confirmed fix for oil wicking thru stator wires

    Many here have reported oil dripping from the stator wires at the white connector, just bellow the voltage regulator on the LH side panel. The oil is actually oozing it's way thru the inside of the wire between the plastic jacket and copper strands.

    Here is a link to the thread:
    http://www.apriliaforum.com/forums/s...hlight=wicking

    I'm also seeing a lot of RSV4s coming in for service with this same issue.
    What I am noticing is that only the late 2012+ RSV4s with the Kokusan stators are doing this. None of the 2010 & 11 bikes have this problem.
    I haven't seen this on any Tuono V4s yet, only on the RSV4-R and Factory.

    It was suggested by someone at Aprilia's Tech dept that the fix is to simply re-route the wire as it exits the stator cover and point it straight up as much as possible.

    At first I didn't think this was going to fix anything, but then I realized that the TV4 doesn't have the problem and it uses the same exact stator.
    The difference is that the TV4 voltage regulator is mounted up high and the wires are routed straight up as they exit the stator cover.

    Attached is a photo showing how I re-routed the stator wires on a couple of bikes that had been leaking quite a bit.
    So far they are no longer leaking and the white connector is dry.

    Just make sure you zip tie the wires to keep them away from the exhaust.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by amauri; 06-13-2016 at 11:04 PM. Reason: update title
    Never accept mediocrity, always demand competence.

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  2. #2
    apriliaforum expert MamboItaliono's Avatar
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    Very cool

  3. #3
    apriliaforum expert gtpandrsvrguy's Avatar
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    Thanks for the info. I'll remember this one for sure.


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  4. #4
    apriliaforum expert plocky's Avatar
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    Excellent & logical, very simple use of gravity.

    Thanks for sharing amauri.
    2015(16) RSV4 RR Ascari Black 201HP

  5. #5
    apriliaforum Junkie
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    thank the lord !

    please let it solve the problem !

  6. #6
    apriliaforum Junkie apriliarsv1000r's Avatar
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    Finally a solution to this annoying problem. Hope it fixes it. Thanks, Amauri! I'll try and do this tonight and will report back in couple of weeks.
    2013 Aprilia RSV4 Factory APRC ABS SBK Special Edition
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  7. #7
    apriliaforum expert cmutza's Avatar
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    That's awesome, thanks for posting Amauri. Any idea if there's enough wire to do this trick if the R/R is mounted to the other side of the bike (IE with track bodywork)?

  8. #8
    just another Aprilia fanatic amauri's Avatar
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    Quote Originally Posted by cmutza View Post
    Any idea if there's enough wire to do this trick if the R/R is mounted to the other side of the bike (IE with track bodywork)?
    Yes, as long as you mount the regulator up high on the frame. Use the two bolt holes where the charcoal canister was previously mounted.
    Run the yellow wires from the regulator across the top of the engine, just behind the radiator and above the exhaust.
    Never accept mediocrity, always demand competence.

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  9. #9
    just another Aprilia fanatic amauri's Avatar
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    Quote Originally Posted by apriliarsv1000r View Post
    Finally a solution to this annoying problem. Hope it fixes it. Thanks, Amauri! I'll try and do this tonight and will report back in couple of weeks.
    Great, please do try it and give us some feedback after a few long rides.
    Never accept mediocrity, always demand competence.

    Certified Aprilia Moto Service in Southern California
    Call me at 714 892-4056 for appointment

  10. #10
    apriliaforum expert rblue02's Avatar
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    Flowing solder into the stranded wire inside the end of the insulation, should help by forming a plug.
    Likely would require connector disassembly.
    '02 Futura, Blue
    90k miles and all is well.

  11. #11
    apriliaforum Junkie apriliarsv1000r's Avatar
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    Quote Originally Posted by rblue02 View Post
    Flowing solder into the stranded wire inside the end of the insulation, should help by forming a plug.
    Likely would require connector disassembly.
    I read someone tried it but didn't help.
    2013 Aprilia RSV4 Factory APRC ABS SBK Special Edition
    2013 Specialized Stumpjumper Marathon Carbon 29
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  12. #12
    apriliaforum Junkie apriliarsv1000r's Avatar
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    Just rerouted the cable. Will let you guys know in couple of days if it worked or not.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    2013 Aprilia RSV4 Factory APRC ABS SBK Special Edition
    2013 Specialized Stumpjumper Marathon Carbon 29
    2010 Cannondale Synapse

    2007.5 Aprilia RSV1000R - SOLD

  13. #13
    apriliaforum Junkie apriliarsv1000r's Avatar
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    It works! Been on couple of long rides and no oil wicking thru the stator wires. Thanks Amauri!
    2013 Aprilia RSV4 Factory APRC ABS SBK Special Edition
    2013 Specialized Stumpjumper Marathon Carbon 29
    2010 Cannondale Synapse

    2007.5 Aprilia RSV1000R - SOLD

  14. #14
    apriliaforum expert Turbinepilot2's Avatar
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    possible fix for oil wicking thru stator wires

    Thanks for the info! I just rerouted mine today and went for a couple hour ride and no oil as well!

  15. #15
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    Going to pop my left side off tomorrow and reroute mine.
    I was in there just recently and noticed this. I used the routing the shop manual recommends.

    It was covered in oil as well.
    I will report back and also provide info on this fix.

    Thank you Amauri for spending the time to debug this.

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