kdx 125 revving to the moon on cold start help

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sykesy
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kdx 125 revving to the moon on cold start help

Post by sykesy »

ok so i have a 91 kdx 125 when i start the bike from cold it revs almost to the limiter apart from it being bad for the rings and barrel its super annoying the bike only does it from cold for around 20 seconds then idles properly when its running if i keep putting choke on and off it seems to idle quicker any ideas what could be causing this any help appreciated
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Slick_Nick
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Re: kdx 125 revving to the moon on cold start help

Post by Slick_Nick »

Sounds like an air leak when cold to me.
'00 KDX 220R
s10gto
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Re: kdx 125 revving to the moon on cold start help

Post by s10gto »

My buddys KDX250 does this after a few weeks sitting. I have wondered about the crank seals being a 1982.
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