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    Starting issues 17 exc 250

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    Maxymilz

    Posts : 52
    Join date : 2016-03-05

    Starting issues 17 exc 250

    Post by Maxymilz on Thu Apr 20, 2017 9:56 pm

    Hi chaps, I have got a 2017 exc 250. It has now got 10 hours on it and I've been out on it 5 times. It's only the last two times I have found she is a right pain to start from cold, on electric or the kick start and with/without choke. Once warm she starts like a dream. Nothing has been tampered with on the bike since it left the factory - that's a lie, I made sure the power valve spring square nut was fully wound out.

    All that stands out in my mind is on the 3rd time out I was a litre or so short of a full tank so used a mates mix for his cr250 which is 40:1 to top it up. And after this ride I relocated the top two pipes off the carb (assuming they are breathers) to inside the top of the air box. I also made sure there was little slack in the throttle cable by adjusting on the handlebars.
    It's only after this I have noticed starting issues when cold.

    Has anyone any suggestions as where to possibly look, I considered the plug may have got oiled up by using a slightly richer mix. Only plug I have spare is a BR8ES (from my 16 model) and noticed the 17 model is a br7es.

    Any suggestions are welcomed. Thanks
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    OWEN450X

    Posts : 1013
    Join date : 2015-12-22
    Age : 44
    Location : Welsh summer returns

    Re: Starting issues 17 exc 250

    Post by OWEN450X on Thu Apr 20, 2017 10:00 pm

    Buy a Honda 'Simples' lol! lol! lol!
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    JTM525

    Posts : 2817
    Join date : 2014-01-19
    Age : 36

    Re: Starting issues 17 exc 250

    Post by JTM525 on Thu Apr 20, 2017 10:11 pm

    OWEN450X wrote:Buy a Honda 'Simples' lol! lol! lol!
    Says the husky owner lol!
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    OWEN450X

    Posts : 1013
    Join date : 2015-12-22
    Age : 44
    Location : Welsh summer returns

    Re: Starting issues 17 exc 250

    Post by OWEN450X on Thu Apr 20, 2017 10:21 pm

    Embarassed Suspect Suspect Embarassed
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    mizzed

    Posts : 3083
    Join date : 2015-05-04
    Age : 38
    Location : Tafarnaubach

    Re: Starting issues 17 exc 250

    Post by mizzed on Fri Apr 21, 2017 1:21 am

    Have you rejetted it yet? Mines run like a dream since I sorted it out

    Maxymilz

    Posts : 52
    Join date : 2016-03-05

    Re: Starting issues 17 exc 250

    Post by Maxymilz on Fri Apr 21, 2017 6:22 am

    mizzed wrote:Have you rejetted it yet? Mines run like a dream since I sorted it out
    No havent rejected. I've had it around a month and they said the earlier ones had issues with jetting but that's all sorted now.

    What sort of issues was you having to warrant rejetting a new bike??
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    mizzed

    Posts : 3083
    Join date : 2015-05-04
    Age : 38
    Location : Tafarnaubach

    Re: Starting issues 17 exc 250

    Post by mizzed on Fri Apr 21, 2017 7:49 am

    Using lots of fuel and didn't like starting that much.

    Any idea what jetting you have in there?

    Maxymilz

    Posts : 52
    Join date : 2016-03-05

    Re: Starting issues 17 exc 250

    Post by Maxymilz on Fri Apr 21, 2017 9:01 am

    Whatever standard is, assuming easiest way to check is to read the numbers on the jets. How did you know what size to change them to? Frustrating you have to do this to a new bike! But funnily enough it is noticeably thirstier than my 16. I usually had around 70-80 miles on a tank. Ran out at 50 miles last week.
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    mizzed

    Posts : 3083
    Join date : 2015-05-04
    Age : 38
    Location : Tafarnaubach

    Re: Starting issues 17 exc 250

    Post by mizzed on Fri Apr 21, 2017 9:52 am

    If it's drinking fuel it will need jetting, they all come really rich in stock form. I left mine as factory to break in then changed it and it's been great since.
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    mizzed

    Posts : 3083
    Join date : 2015-05-04
    Age : 38
    Location : Tafarnaubach

    Re: Starting issues 17 exc 250

    Post by mizzed on Fri Apr 21, 2017 9:53 am

    Jets are easy can tilt the carb and drop them out of the train plug. The needle will need to come out with the slide.

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