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Help Fuel and gear oil changing place :-)

Discussion in 'Suzuki 250cc 2 Strokes' started by Eivind Stokka, May 15, 2015.

  1. Eivind Stokka

    Eivind Stokka Member Premium Member

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    Location:
    Haugesund, Norway
    My Bike:
    Suzuki RG250 Mk1
    Hi,
    Spring has arrived in Norway and I was preparing my RG250 for summer.
    When changing the gear oil, I noticed the viscosity. It was thin as gasoline, and smelled like gasoline as well... Thinking back to last year I remember it smoked a lot even for a 2stroker. I refilled with 850cl of new oil and drove for about a 100km. Left it parked for about a week then drained out approx. 600cl of petrol-smelling oil. I assume that there I a leak between the crank case and gearbox.
    Havve anyone had any similar experiences?
     
    Eivind Stokka, May 15, 2015
    #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.
    I've had 2strokes that drink gearbox oil, but not had any with petrol filling the gearbox.
    Could there be a carb float needle leaking into the airbox and petrol then draining down through the gearbox breather into the oil (have had this happen with a 4stroke)? Maybe you could try disconnecting the airbox to gearbox tubes and see if you have petrol leaking out.
     
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    Murdo, May 15, 2015
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  3. Scotchy

    Scotchy Active Member

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    I agree with murdo. Check your needle and seat. Also the float setting.
     
    Scotchy, May 19, 2015
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