Maintenance & Technical > KX450F / KX250F

Stroked and bored 06

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hughes:

--- Quote from: JEREMYZDEAD on April 07, 2010, 06:54:36 AM ---I got the +3 stroker. I was wondering if 98mm overbore was the biggest i can go with out problems boring the stock cylinder? It would make it a 491 or just put out for the athena 100mm bore kit to make it 511.

--- End quote ---

Please correct me is if I'm wrong, but the +3 stroker is a longer stroke than stock? With a longer stroke the engine will not rev out as fast but pull like a train on top end? 

JEREMYZDEAD:
The head is port and polished with the inserts. I lost some of the bottom end because of it. If not couldn't I just change gearing? When I put the +3 in there.

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