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Help My FZR sounds a bit top endy lately

Discussion in 'Yamaha 250cc In-Line 4's' started by richie, Sep 17, 2015.

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  1. richie

    richie Active Member

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    Seems to be coming from the center of the head near rocker cover on exhaust side. All I can say is its slightly worse than it was a few months ago when the new mech said that the tensioner is prob stuck between teeth as spring could be gone weak. But going on disassembly theres loads of tension from the two springs so I dont know how it could be the CCT making the noise. The noise is there when driving aswell clicky ticky sort of noise :-/ the clearances were done yes not too many miles ago 4 shims replaced and others moved around id assume he didnt give me any sheet ect to say what old vs new clearances are were
     
    • Well said! Well said! x 1
    richie, Sep 23, 2015
    #21
  2. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    It sounds like perhaps you stretched the chain a bit when you loosened the tensioner body before undoing the tensioner spring bolt.

    Even before the chain is completely worn out, they get noisier.

    Take off the rocker cover and inspect the chain guides for wear. Mine had none even with a rooted cam chain but yours may differ.
     
    Linkin, Sep 23, 2015
    #22
  3. richie

    richie Active Member

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    I undid the center bolt before the body when I took it out. When it was all refitted it was still noisey so I undid the body bolts slightly until ratchet clicked once and tightened them back up again.
    I tried the Italian tune up tonight and my fzr runs out of puff at 170kph is this good or bad?

    I will check them soon or ill drop it to the new mech maybe.

    Also ive my eye on a 1000cc fzr looks the image of my 250. How are they maintenance wise if you know?
     
    richie, Sep 24, 2015
    #23
  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    If it gets to 170kmh the only thing I would do is when u get home, park it , and go sit on the porch and smile ..... plus maybe get a rag and go polish it a little , then go back and sit on the porch and smile some more.

    :crazypilot:
     
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    GreyImport, Sep 24, 2015
    #24
  5. Joker

    Joker See "about me" for contact details. Contributing Member

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    Post up a video of the sound. Ticking is more valves than cam chain, by memory cam chain is a grinding noise. Your timing could be out by a little but that's easy enough fixed.

    My bike was ticky until i did the valve clearances. No ticking anymore.
     
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    Joker, Sep 24, 2015
    #25
  6. Phil

    Phil Senior Member Contributing Member

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    You forgot to mention a nice cold beverage to celebrate.....we have a winner said he from his porch :lolsign:
     
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    Phil, Sep 24, 2015
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  7. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    170 is good. The fastest I have seen a fizzer go (on youtube) was 190KM/h.
     
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    Linkin, Sep 24, 2015
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  8. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Regarding the bold, that has likely stretched the cam chain further.

    My old cam chain was stretched by 5mm but the tensioner was only about halfway out. The chain rattled all the way to about 7,000 RPM. Above that it was quiet. Below that it was like a bucket of bolts.

    The point I want to make is that the chain can be rooted and the tensioner won't always be fully extended.
     
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    Linkin, Sep 24, 2015
    #28
  9. richie

    richie Active Member

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    Well this is according to my speedo so the accuracy is to be determined id say it would do more but the road I was on is slightly uphill and I wasnt tucked in that great i think it would hit 180k on the flat but I dont think ill b doing it again anytime soon too much risk of getting caught theres speed vans etc every where in Ireland nowadays. This might sound odd for an irish man but the only cold beverages I drink is water lol.

    Joker you could be onto something there with le video do I need a youtube acc for that?

    Sorry linkin got wires crossed it very late at night when I be looking at the forum and I get your point now :) I wouldnt call it a bucket of bolts yet but I would say that about my clutch noise
     
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    richie, Sep 25, 2015
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  10. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Noisy in neutral but goes away when you pull the clutch in? That's going to be a thrust washer/bearing of some description. Usually they are made bronze. I'll have to have a closer look at the parts book and see how hard it is to replace.
     
    Linkin, Sep 25, 2015
    #30
  11. Joker

    Joker See "about me" for contact details. Contributing Member

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    You just need a gmail account for youtube (google owns youtube).
     
    Joker, Sep 26, 2015
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  12. richie

    richie Active Member

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    Torture to set up a channel etc cz I have to use a terrible phone lol bt heres the video of the noise
     
    richie, Sep 28, 2015
    #32
  13. richie

    richie Active Member

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    I shall add to my misery now with more issues. The whole motor feels like its moving if im coasting and put back on slight bit of throttle and same sometimes when im taking off. I thought this was the chain which was tiny bit loose so I tighten it back up to the proper amount. Still does it.

    With bike off and jacked up in neutral while rotating the back wheel gear box im assuming is clacking sort of noise not sure if normal? Didn't do it when I fitted the new chain and sprokets but is doing it now?

    Getting quite a bit of vibration in the pegs at different speeds maybe balancing? Wheel bearing?

    There was something else but I cant remember now :-/
     
    richie, Sep 29, 2015
    #33
  14. zixxer

    zixxer Well-Known Member

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    my bike is doing the same mate, weird vibrations under 8000 rpm, going to just do the cam chain and see if it sorts anything out.
     
    zixxer, Sep 29, 2015
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  15. richie

    richie Active Member

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    I hope it sorts it out for you, this bike has been torturing me since I bought it, starting to wonder if its cursed!!
     
    richie, Sep 29, 2015
    #35
  16. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Just a sideways thought, have you checked the exhaust clamps at the head? It may be a leaking gasket.
     
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    Murdo, Sep 29, 2015
    #36
  17. zixxer

    zixxer Well-Known Member

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    probably overthinking it, bike is old and rough dude. I havent heard a zxr250 that is silent like new models they are just made noisy, pretty sure the fzr is in the same boat.
     
    zixxer, Sep 29, 2015
    #37
  18. Joker

    Joker See "about me" for contact details. Contributing Member

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    I think you need to look at the valve clearances dude... it doesn't sound "scrapy" it sounds "ticky" or "clicky" to me. it's easy enough to check them, most of the work is tearing the bike down to get there. Especially as the noise seems to speed up as the RPM goes up.

    As for the rest of the noises, just think of it as an overpowered lawnmower. That way the sound goes from "torture" to "pretty bloody awesome". :D
     
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    Joker, Sep 29, 2015
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  19. richie

    richie Active Member

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    Ive given then a check all good no leaks all tight anyway.

    The bike is old its same age as me and im not that rattley yet :p its only got 23k on the clock anyway and blair said engine casing may have previously been replaced as theres no markings on the engine bar 1hx. Uses no oil either so I guesd I have it good some ways.

    They clearances were done not long ago 2kish linkin said if there on the loose end of spec it would explain it.

    I might just ask the mech to take Iit for a spin cuz the gear changes are dirty on it lately aswell

    Ha ha you should hear my lawn mower ive attached a cable tie to the linkage it must be reving out to 6k great for when you leave the grass get to long!!
     
    richie, Sep 30, 2015
    #39
  20. Joker

    Joker See "about me" for contact details. Contributing Member

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    If the clearances are in spec I don't think they should be making noise. All my intake valves were on the tight end with a very distinctive ticking sound when running. Now mine are all within spec but at the loose end and no noise. If they're out of spec (ie too loose) I can see the logic there. I would still check them because to me something's going on. Even if they were done 2K ago, doesn't mean they were done properly or something hasn't changed...
     
    Joker, Sep 30, 2015
    #40
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