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1982 KX125 jetting

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Hey guys, I have a 1982 KX125 and need a needle jet for it. The jet is # 5E31 and obsolete.

Wondering if someone knows what other needle I could use in its place.

Thanks!

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Is that the stock needle and you are replacing it for some reason or are you changing the needle to make the engine run better ?

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Yep that is the stock needle which I broke :(

Now I need to replace it with something close. I've found a 5E13 but unsure of the difference or how it will affect the performance

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In some cases u can go up in years on your bike and order stuff for it ,like here's a example I have a 1986 kx500 getting parts is not easy so I use 1988 kx 500 cause some of that will work

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