KX250 VForce3 Reed Install

The recent purchase of my 2001 KX250 came with new in box VForce3 reeds. I also like to clean and verify carburetor jetting on any motorcycle that I purchase, especially 2 strokes. Keep in mind that reeds are a wear item and do need replacement, usually they can be inspected/replaced when replacing top end. I’m really glad new reeds came with the sale since I found a broken/chipped reed petal! (The broken petal is on top left)

I performed a compression test when I first purchased this KX, and it came in at 180 psi. I thought great, the KX250 service manual states 172 psi, I’m good to go. WRONG! After the VForce reed install, I retested compression and it shot up to 200 psi. After reading some forums posts, this model should see anywhere from 195-205 psi with a fresh top end. Remember, the reeds act like a one way check valve, only letting air in the engine. The broken reed petal was allowing some of the air escape back where it came from rather than into the combustion chamber, hence the lower compression reading.

Are they worth the money? Did it make a difference?

Honestly I can’t answer that question since broken reeds versus new reeds are not a fair comparison.

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