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1979 YZ400 Piston wanted
https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=28&t=1629
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Author:  Ruairi [ Thu Nov 01, 2007 1:47 pm ]
Post subject:  1979 YZ400 Piston wanted

Guys

Has anyone got a 0.75 3rd o/s piston for a YZ400F.
Must be the F model.

many thanks

Author:  jimg1au [ Mon Nov 12, 2007 5:35 am ]
Post subject:  Re: 1979 YZ400 Piston wanted

hi jim here in australia
i was put onto a racer in victoria southrn australia who runs yz465 pistins in his 1979 yz400f.he miked both pistons and found that if he used a 4mm spacer plate under the barrel the 465 works perfect.run this past the guys at antig they might be able to verify if this is ok for you.
cheers
jim garvey

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