Wild green 300 piston clearance

Forums Technical Two Stroke: Help needed Wild green 300 piston clearance

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    • #9261
      Michael Bryson
      Participant

      Hi I am just finishing rebuilding my wilf green 300 and wondered if the piston/head clearance is the same as the 250. Checked clearance with original head gasket and it’s to big. Can’t find any info in manuals. Any help great full. Cheers mike

    • #9266
      Brian Thurlow
      Participant

      Piston Head clearance for the 300 is the same as a 250.

      In my experience with 3 Wilf Green 300s all had wide squish bands 1.75 to 3mm,
      larger the clearance the lower down the rev range the engine pulled from, but less top end, 3mm 65mph.

      I had them machined down to 1mm clearance and the engine had the same power characteristic’s as a 250 but with more GO!!

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