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Looking at fizzer with issues- what do you think is wrong??

Discussion in 'Yamaha 250cc In-Line 4's' started by brad1, Oct 31, 2008.

What is the problem????

  1. Worn Rings

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  2. Carbonised head

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  3. Burned valve

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  4. valve adjustment

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  5. fuel blockage/ problem

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  6. spark problem

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  7. operator error

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  8. the rotation of the earth compared to solar radiation bouncing from nearby solar system objects

    0 vote(s)
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  9. its pissed off that it was painted yellow

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  1. brad1

    brad1 New Member

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    Hey fellas

    looking at a fizzer tomorrow, 1989 2KR. Cheap as anything, yes it has issues. $650, needs rectifier and several other usual bits that cheap bikes need.Anyway I am told she is a little hard to start, but it will start with some startyabastard. When it is started, it doesnt like to rev over 6,000 revs. I have my own idea- 2 options, but I am leaning towards one. So I thought I would put it out there for the public out of interest, interested to see what people say, and it might give people a chance to have an educated guess.....- what do you think is wrong with it- why is it hard to start, and why doesnt it like to rev past 6,000 revs?

    I will confirm my findings.

    So- what's wrong with it??

    [​IMG]
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    brad1, Oct 31, 2008
    #1
  2. poorboy

    poorboy New Member

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    hey brad, i'm not real good at this sorta thing but i'll give my 2 cents anyway.
    now i'm assuming that to get it running u had to disconnect the reg/rec, maybe this could have something to do with the rev issues <!-- s:Help: --><img src="{SMILIES_PATH}/icon_question.gif" alt=":Help:" title="Help" /><!-- s:Help: --> not sure.. the starting problem could be either valve timing or un nurtured carbs or both. these two things made a huge difference to the way my bike started.
    any one please tell me to bugger off if i'm talking a load of shite.
    sorry if i'm no help. but no worries if i am.lol.
     
    poorboy, Oct 31, 2008
    #2
  3. rockerted

    rockerted New Member

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    when i got my 2kr, wouldn,t rev but would start, had been standing, took it out a few times and suddenly it went like **** off a stick, put a new fuel and air filter in, as probably had muck in the fuel,just needs carbs balancing now, <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt=":D" title="Very Happy" /><!-- s:D -->
     
    rockerted, Oct 31, 2008
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