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Bane77

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    ybr 125 Starting Problems

    in Yamaha Workshop

    Posted

    Same problem with a YBR 125 injection here in germany. But the workshop told a different story: If the pressure in the tank is too high, the valve is shutting off.

    I did not believe that until the owner of a '09 wrote in a bulletin board that if he removes the gas cap the YBR can be started after a few seconds.

    There should be the valve in the gas cap, that does that work. Mabe it was just luck? There was nothing exchanged on warranty.

    Greetings, Martin ('05 YBR owner)

    When I had that problem one of the things I tried was removing a gas cap. It didn't help. Only thing that helped was getting a bike in a cooler place and wait for few hours.

    ybr 125 Starting Problems

    in Yamaha Workshop

    Posted

    Hi, My stepson purchased a 2007 YBR 125 last autumn. Lovely little bike, but it has just started being unreliable. If he leaves it out in the sun it becomes impossible to start. When its cooled down...hey presto....its starts and runs beautifully. The local Yamaha shop has been shall we say, very cagey and dont seem to be able to diagnose the problem dispite it being connected to thier computer. Has any one ever heard of this fault and if so what can he do to rectify it?

    Update...it wouldnt start again today....so we used our logical brains and threw and bucket of cold water on the tank and engine area....and guess what!! IT STARTED...Does this help diagnose the problem??

    Thanks

    I had a same problem. In service they told me it is not uncommon problem with fuel pump. They changed my fuel pump under warranty (so if costed me no money and I guess they had no reason to lie to me). Since that it works great, I tried to leave it in a sun at 35 degrees celsius half a day and it starts without any problem. My YBR is 2007 same as yours.

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