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Thread: Ryobi 31cc twin ring & Frank Bowman ring
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Old 10-01-2004 | 03:26 AM
  #23  
mikenlapaz
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From: La Paz BCS, MEXICO
Default RE: Ryobi 31cc twin ring & Frank Bowman ring
Always good to have different opinions. It raises a few more questions.
Do any or all of the common makes (Ryobi, Homelite, Zenoah) have Chrome or Nikasil cylinders ? To me they look like finely finished Alum.?
I have a NIB Zenoah boreup 25.4cc cylinder, it shows no evidence of any 'crosshatch' in the cylinder.
I dug out Frank Bowman's cover letter, and got another viewpoint:
....Lightly buff the cylinder with 400-600 grit emery paper to help seat your new ring.......
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