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speed decreasing and not able to rev

Discussion in 'Yamaha 250cc In-Line 4's' started by third time lucky, Nov 10, 2008.

  1. third time lucky

    third time lucky New Member

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    this is my third bike but doing it properly this time with my licece. Havent had this problem before. I was riding at about 110km and al of a sudden the bike started decreasing in speed not allowing any throttle to increase the revs, or speed. when i pulled over (stopped) the revs dropped completely and tured the bike off. it started again after a while, it was turning over but not idleing. It hapened 1km further down the road and then started again,i switched the arrow around to reserve tank and did not have any more problems yet (fingers crossed). I was wondering if it would be a blockage in the fuel tank, hence no revs, or acceleration????
     
    third time lucky, Nov 10, 2008
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  2. dave

    dave Well-Known Member

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    Not uncommon to see fuel blockages do that type of thing.. also check your fuel level, you may have run low in the tank. If that is not the problem, pull the tap block out of the tank and check it out for partial blockages..
     
    dave, Nov 10, 2008
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  3. rockerted

    rockerted New Member

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    suggest you check fuel level in tank, it sounds as though you were running out!! <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt=":D" title="Very Happy" /><!-- s:D -->
     
    rockerted, Nov 11, 2008
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  4. rockerted

    rockerted New Member

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    whoops, sorry dave, you,ve covered that <!-- s:oops: --><img src="{SMILIES_PATH}/icon_redface.gif" alt=":oops:" title="Embarassed" /><!-- s:oops: -->
     
    rockerted, Nov 11, 2008
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  5. third time lucky

    third time lucky New Member

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    I defenitely had enough gas it was something else, i have only had the bike 3 days now, everything else is mint as on the bike!! hopefully not a big problem.
     
    third time lucky, Nov 11, 2008
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  6. dontz125

    dontz125 Active Member

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    You may have a fouled main fuel port - basically, 'Reserve' takes over a lot sooner than expected! <!-- s:-? --><img src="{SMILIES_PATH}/icon_Eyecrazy.gif" alt=":-?" title="Eye Crazy" /><!-- s:-? -->
     
    dontz125, Nov 11, 2008
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  7. deadbirds

    deadbirds New Member

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    well mine did exactly that when my main fuel line was a bit messy.
    you tried changing to the reserve line?
     
    deadbirds, Nov 13, 2008
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  8. third time lucky

    third time lucky New Member

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    yea i have switched it to reserve until i get it into the mechanic, and its been working pretty sweet hasnt happened again. i still dont think its running as well as it could be, so will be good to get it all checked out.
     
    third time lucky, Nov 13, 2008
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  9. third time lucky

    third time lucky New Member

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    apparently when the bikes get re-painted it can block some filters or other parts like tha, it was causing the bike to perform like rubbish. it goes hard and drives well now though, just needed a clean out. Nice and easy! <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt=":D" title="Very Happy" /><!-- s:D -->
     
    third time lucky, Nov 19, 2008
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