In a message dated 12/18/2007 9:03:38 P.M. Pacific Standard Time,
aultgc@jorsm.com writes:
Folks,
Remember that Hitachi copied SU carbs (under license, I presume). They
probably used Whitworth Standard (British) threads. Has anyone ever tried
to use genuine SU dome screws from Moss Motors or the like? Somewhere in
the back of my aging mind I seem to recall being told that they're a 27
pitch thread, as opposed to 28 pitch, which would be SAE. Close, but no
cigar. My guess is theBritish parts will work, but I really don't know.
Gary Ault
Nope, won't work. The early carbs (1500, most 1600, some 2000) are 5x.75
pre-ISO metric. Some 1600, most 2L and the Z carbs are 5x.8 ISO metric. If
anyone has found a source for the 5x.75 screws I would love to hear about it.
keith
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