Kdx200 with a 71.95mm piston?

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Kdx200 with a 71.95mm piston?

Postby Erik225 » 06:17 pm Sep 17 2018

I recently bought a 1990 kdx200. Its all marked as a 200 but it has a 71.95mm piston in it. From what i can find it shouldnt be possible and so far its impossible to find one. Does anyone know of pistons that over sized for kdx? Really appreciate any help. I expected this to be much easier
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Re: Kdx200 with a 71.95mm piston?

Postby Jason » 07:10 pm Sep 17 2018

Welcome to kdxrider.net. :bravo:

I would assume you have a "240 overbore". Are there any distinguishing marks on the piston? Search for member, artstoy, post on such a similar situation from last week.

May I ask if the cylinder is sleeved or plated? Does it have the power valve system? Thank you.
Thank you, Julien D for all your hard work!

PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
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