Chirping sound from motor!

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Katoum, Jun 17, 2004.

  1. Katoum

    Katoum Adventurer

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    Feb 26, 2004
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    My bike has developed a chirping sound from the motor. It sounds like its coming from the right side. This was noticable when first started but has become worse lately and is apparent all the time. It happens when mild throttle is applied at low speed with the clutch engaged. You can make it chirp everytime you let the clutch out but it happens after the clutch is fully engaged. A mechanic told me he thought it might be the water pump, as he has heard this noise in other bikes. If there is excessive play in the impeller shaft it makes sense that this could be causing the noise. My riding partner has has the exact same noise on his 950 which is a 03, mine is a 04. Are we the only ones who have a canary under the hood?
    #1
  2. barbasma

    barbasma 100% CAROTONE

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    uhmmm... whit hot engine... if you start the bike... the oil pressure light turn on....

    this is because the oil is too hot and liquid and the oil pump cannot pump it!!!

    but just few second and throttle and the noise is off...
    #2
  3. SMAC

    SMAC Adventurer

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    Mine does it too. Mentioned it to the dealer at the 4,500 mile service but they couldn't identify it. I don't notice when i'm riding but every time I pull away from junctions/ roundabouts, the chirp is quite audible. I thought it was clutch or transmission but still haven't sourced it yet.

    Oh yes it's a silver 03.

    smac
    #3
  4. Katoum

    Katoum Adventurer

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    Its totally different from the usual clatter of hot engine start. It actually sounds exactly like a canary chirping, short little chirps, high pitched.
    #4
  5. Katoum

    Katoum Adventurer

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    I was thinking clutch also but it happens even when the clutch is fully engaged, like idling in 1st gear traffic, and giving small amount of throttle. I beginning to think its impeller related. If there is excessive axial or end-play on water pump shaft do you think the impeller could be contacting housing. I mentioned to my dealer also, his 950 seems okay. I've had people comment they can hear it while standing near by.I think I will bring this up with dealer again, now that noise is easy to duplicate. Instead of a "Tiger in the tank, I apparantly have a Canary under the hood" :rofl .

    #5
  6. Desmofan

    Desmofan Been here awhile

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    My silver 950 has made exactly the same noise since new (now 1200 miles)! I'm glad I wasn't hallucinating :loco ....

    Maybe it's just carb squeek/intake honk ( ever hear flatslides chirp?)
    #6
  7. motozilla

    motozilla Long timer

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    That's my guess. I've got it too. It seems to happen most when the bike is cold.
    #7
  8. Foad99

    Foad99 Adventurer

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    Mine makes the same noise as I take off from a standing start. If I am moving and hit the gas I can't get it to make the "Chirp".

    It sounds like the noise the WRC Rallye cars make as they decellerate(sp) into hard corners.

    SJ
    #8
  9. Katoum

    Katoum Adventurer

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    First noticed mine when it was cold, thought it was clutch. It now does it all the time and anyone around can hear it. I also thought of carbs, as they do make quite a racket when air filter is off, but it seems the carb slide noise is more of a rattle, clicking sound, as opposed to a Canary chirp. While I guess we will eventually get to the bottom of it. Has anyone heard from KTM on this.

    QUOTE=motozilla]That's my guess. I've got it too. It seems to happen most when the bike is cold.[/QUOTE]
    #9
  10. Greg Minor

    Greg Minor The Trespasser

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    My bike is in the shop waiting on parts to rebuild the waterpump (warranty) I did not notice the chirp but my radiator fluid was very dark. KTM has seen several waterpump failures. I also had oil leaks around the cam tensioners but KTM had not seen that problem yet so they don't seem to want to warranty that one Does anyone know if the tensioner has to be removed during a normal valve adjustment and if so could the mecahnic of caused the leak (sorry I don't mean to hijack your thread)
    #10
  11. arroyoshark

    arroyoshark Needing some space

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    I get kind of a low chirp when engaging clutch when engine is not yet warmed up, and then just a low rpms. Figured it had something to do with clutch engagement or transmission.

    Greg...When the valves are checked or adjusted, the cam chain is not affected. The cam chain spins a spur gear, located below the cams, which drives the camshafts. This way the cams can be just lifted out, after removing cam bearing bridge bolt and bracket, to get to the buckets and shims.
    #11
  12. Greg Minor

    Greg Minor The Trespasser

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    Thats what I though so KTM should warranty the replacement o-rings that where leaking
    #12
  13. arroyoshark

    arroyoshark Needing some space

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    Greg, have you checked all those small bolts on the engine for tightness. I found that few of these get a bit loose between oil and service intervals. I can usually find some of these 8mm socket bolts to re-tighten. I dunno, just taking a stab at it, here. :dunno
    #13
  14. Greg Minor

    Greg Minor The Trespasser

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    This is what I found the engine was really dirty on both sides I found this when I removed the tanks to change the oil. Both sides where leaking

    Attached Files:

    #14
  15. O.C.F.RIDER

    O.C.F.RIDER Loose nut behind h/bars

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    My bike makes the same noise,it has'nt done it since new,but it's been doing it for most of the time that I've had it.I have 5400mi. on it so I guess if it was anything major it would have blown itself up by now.It sounds like such a tiny little noise that it does'nt seem like it could be anything to major.:scratch I guess I'll just keep my finger's crossed.
    #15
  16. arroyoshark

    arroyoshark Needing some space

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    Gotcha, no small bolts there. It also appears that the oil is seeping down from above, like perhaps when they replaced the valve covers the valve cover gasket, especiallyat the cutout for the camshafts, might not have been seated correctly. I know I had to check and redo mine during initial service to get them properly seated in there grooves. Somone may also have been forgetful about correctly torquing the valve cover bolts (4 each cylinder).
    #16
  17. jcividan

    jcividan Adventurer

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    I can hear the same noise, it could be a coincidence but it started after I fitted the Akras.
    #17
  18. Doug Matson

    Doug Matson Long timer

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    If you take the inserts out of the Akra's the exhausts will chirp. Its the bolt hole for the inserts making the noise. Mine only chirps when those are out and the hole is not covered.
    #18
  19. Katoum

    Katoum Adventurer

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    I would say it's a coincidence. Its amazing how many bikes are chirping, but no one has found the cause, maybe we need a reward. :1drink I get one solid chirp every time I let out the clutch, and I also chirps in first gear when just idling along and gental throttle rolling on and off, like in city traffic. It may be doing it other times as well, we just cannot hear it. I'm still leaning to water pump as the cause. My dealer has heard it, and will be reporting to KTM. Not knowing, and fact that all bikes to do not do it, is driving me to :1drink:1drink :1drink .

    #19
  20. arroyoshark

    arroyoshark Needing some space

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    I was out riding my Transalp yesterday and it makes a chuffing sound, almost a chirp when accelarating at low throttle. This is intake noise. Maybe it is just carb or airbox intake noise that we are actually hearing on the KTM, but it's higher pitched because of even less throttle opening to take off. I will listen more closely next time on KTM.
    #20