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    engine storke.....engine bore - what size?

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    Clarky_two

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    engine storke.....engine bore - what size?

    Post by Clarky_two on Sun Nov 20, 2016 11:11 am

    anyone know what the engine stroke (mm) is and the bore (mm) for a 2016 ktm 350exc-f 4 stroke?

    Trying to sign up for the snow run but dont know the answers to the question for the entry form
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    mizzed

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    Location : Tafarnaubach

    Re: engine storke.....engine bore - what size?

    Post by mizzed on Sun Nov 20, 2016 11:14 am

    88x57.5 for the 17 model according to Ktm website.

    Google is your friend lol!
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    Clarky_two

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    Re: engine storke.....engine bore - what size?

    Post by Clarky_two on Sun Nov 20, 2016 11:15 am

    mines the 2016 model - will anyone actually check it? and whats it for?
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    mizzed

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    Re: engine storke.....engine bore - what size?

    Post by mizzed on Sun Nov 20, 2016 11:18 am

    It's the same back to at least 2014 model that I can be arsed to google for Smile

    The only way they would be able to check is to rip the top end off and measure, so I would say your safe.
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    Clarky_two

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    Re: engine storke.....engine bore - what size?

    Post by Clarky_two on Sun Nov 20, 2016 11:19 am

    cheers Pete
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    mizzed

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    Re: engine storke.....engine bore - what size?

    Post by mizzed on Sun Nov 20, 2016 11:20 am

    I assume they just want to know if your engine has been modified with an over sized piston etc.
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    shocker

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    Re: engine storke.....engine bore - what size?

    Post by shocker on Sun Nov 20, 2016 11:33 am

    Clarky_two wrote:mines the 2016 model - will anyone actually check it?  and whats it for?

    Think it's for the random noise test meter
    Sharpie the numbers on the engine somewhere just in case, and forget about it


    Last edited by shocker on Sun Nov 20, 2016 3:30 pm; edited 1 time in total
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    Taffy300

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    Re: engine storke.....engine bore - what size?

    Post by Taffy300 on Sun Nov 20, 2016 11:53 am

    Its the same Lee: 88mm bore, 57.5 stroke.

    As shocker said, it will be on the barrel somewhere, get a marker pen & just highlight the numbers, I heard it's to do with noise level & stuff with pricks who argue their fmf/akropovic ... etc ... etc ... are noise legall for FIM approved race, somehow by bore & stroke they can work out the legal noise limit, dunno ??
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    juljam33

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    Re: engine storke.....engine bore - what size?

    Post by juljam33 on Sun Nov 20, 2016 1:00 pm

    Get a sharpie and scribble it on the cylinder so it's in view of scrutineer and noise tester
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    wolfy

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    Re: engine storke.....engine bore - what size?

    Post by wolfy on Sun Nov 20, 2016 4:01 pm

    juljam33 wrote:Get a sharpie and scribble it on the cylinder so it's in view of scrutineer and noise tester

    +1 tis 88 X 57.5 too

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