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Help Yamaha YBR250 part needed

Discussion in 'Yamaha 250cc Singles' started by Jimmycc, Jun 5, 2018.

  1. Jimmycc

    Jimmycc Active Member

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    oh man soon as you said yzr125 I used to have bits n bats for that and vallah 1 right at top o box in shed,looked over all looks same ,took off and put that on running spot on and engine management light gone out,happy days thank you soooooo much,it does cut out when running hard but will change plug oil and give the owd knackered girl a good servicing,they all need it you know thanks again jim
     
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  2. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    That's a win in anybodies universe, and a quick one at that - I'm getting myself a lotto ticket for tomorrow 'cos me lucks up
     
  3. Jimmycc

    Jimmycc Active Member

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    get me one it double money yeeeehhaaaaaaa

    thing is this is good news for lads who have this problem in future,yamaha said 500 squids for a new throttle body lol

    all I need now is a workshop manual so I can adjust mi tappets
     
    Last edited by a moderator: Jun 7, 2018
  4. Jimmycc

    Jimmycc Active Member

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    thanks for replys,ive took it for a spin and it spluttered a bit at high revs,parked up,went out for spin round for half hour today and bum wont start ????? think ill take off again and give it a real good clean,plug and a filter I think
     
  5. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    My money would be on calibrating the throttle position sensor as first port of call if all else is unchanged except for disassembly, cleaning and reassembly

    I've got no experience with that bike or another like it unfortunately so google is going to be your friend
     
  6. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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  7. Jimmycc

    Jimmycc Active Member

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    Yahve lost me how do you calibrate cheers
     
  8. Jimmycc

    Jimmycc Active Member

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    oh man its just come to me looking at the spare carb,i haven't put an o,ring in sure its that,ill stick in tonight and let yah knows lol
     
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  9. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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  10. Jimmycc

    Jimmycc Active Member

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    thanks for link,i put other rubber in but running real rough,just cuts out and then comes backin under load,im goin to take tank off and clean fuel system/tank ect,and take throttle body off completely and give it a right good clean cheers jim
     
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  11. Jimmycc

    Jimmycc Active Member

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    well stripped down and cleaned everything but struggling to start,goin to give it another go in morn
     
  12. Jimmycc

    Jimmycc Active Member

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    hi guys just a quick 1 should the pump be priming on turn on on the ybr250 ,I get a few 125 cbr s in and they do cheers jim
     
  13. Jimmycc

    Jimmycc Active Member

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    just ordered new pump ,seemed intermittent so took out and tried to battery and was working then slowing then nothing so hope that's why engine management was comin on ,will let you know cheers jim
     
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  14. Jimmycc

    Jimmycc Active Member

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    all pumping good but after putting all back together ive got engine management light oh my its getting to me now
     

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