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Jetting after Big Bore ???

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What should i expect in terms of jetting after installing a big bore top on my 2001 KX 250 ( 310 ) ?

Thanks

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May have no change. Depends on how perfect the jetting was before.

If it was too lean, it will probably be perfect now.

If the jetting was absolutely perfect (confirmed with a widband A/F sensor) you may find you have to lean some.

If it was too rich, it will be way rich now.

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May have no change. Depends on how perfect the jetting was before.

If it was too lean, it will probably be perfect now.

If the jetting was absolutely perfect (confirmed with a widband A/F sensor) you may find you have to lean some.

If it was too rich, it will be way rich now.

What do you consider about perfect for a 2t in regards to a/f?

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