I'm resurrecting a 60's Johnny Walker Formula 4 from a basket of parts.
Included springs are 150#, 250#, 310#, 350# and 480#.
Among other issues, I have spring questions.
I need to get some new springs (at least fronts) and am trying to make an
educated decision. Weight is ~600#, distributed aft but I don't know % yet.
Motor currently is Honda CB-750, no ides what else may have been in there.
Sanctioned as 3/4 liter from virtually any source.
Current front sets are 2.25" x 7.5" and I need to go shorter by 1-1.5" for
clearances. Rears are also 7.5" but bottom end is 2" id. (threaded perch is
pressed steel).
If anyone could direct me to a source of information on choosing spring
rates, and a source for springs, I would be most appreciative.
Regards,
Walt Suman
Seattle
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