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Old 04-17-2013, 04:38 PM   #7781
Killer Rabbit
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Joined: Jul 2010
Location: North Shore of Lake Superior
Oddometer: 1,511
Originally Posted by dmcc67 View Post
Which 250 won't take a 300 cylinder/piston? I can't find this broken down anywhere.
I have a 2006 KLX250s and am hoping to bolt on a 300 cylinder/piston.
Originally Posted by lobolator View Post
TNC has an '06 or '07 KLX250 with the 300 jug bolted on.
It's the 80's KLX that it won't work for.
'06-'13 (current) KLX250S will accept a '97-'07 KLX300R cylinder. The '93-'96 KLX250R will not accept a '97-'07 KLX300R cylinder; it's the same engine family, but the counter bore in the cases of the early 250R was too small to accept the later 300R cylinder skirt.

The 80's KLX were completely different, so also will not take accept the 300 parts.
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