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Help 1989 3LN carb

Discussion in 'Yamaha 250cc In-Line 4's' started by Mickey250, Oct 24, 2016.

  1. Mickey250

    Mickey250 Active Member

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    My Bike:
    Yamaha fzr 250 exup
    How to fix float bowl not refilling issue?.... It refill but you need to sit it for a while.. What you think is the prob! Thanx
     
    Mickey250, Oct 24, 2016
    #1
  2. Murdo

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

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    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Blockage in fuel line.
     
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    Murdo, Oct 24, 2016
    #2
  3. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    My Bike:
    Yamaha's , 1990 FZR250R 3LN3 , 1986 XT250TS 57R , 1984 IT200L 43G, 1976 IT400C 510
    Is it just happening with 1 carby?

    Could be a sticky needle/seat,
    could be a sticky float,
    incorrectly adjusted float,
    dirt, gum or foreign matter stuck in needle/seat
    Dirt in the rubber that join's carby to next carby
    There may be a filter in the plastic t piece where the fuel hose goes onto
    Carby diagram here- http://litetek.co/docs/FZR250_3LN.pdf
     
    my67xr, Oct 24, 2016
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  4. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Take float & needle out. Back blast the passage with compressed air.
     
    Linkin, Oct 24, 2016
    #4
  5. Mickey250

    Mickey250 Active Member

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    I checked fuel line and it flow normal.. Idont know if it getting enought fuel for all carbs igonna take some video nxt time..
     
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    Mickey250, Oct 25, 2016
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