1/4-26 hardware for boyer mount?

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byrdman76

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Nov 14, 2009
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Any one have an extra or know a source to buy one?

Picked up a used boyer and only the 1/4-28 was present.
 
Are you referring to the bolt that holds the rotor to the cam taper? Would the original auto advance bolt work here? Too long?
 
Exactly - original rotor bolt is too long, and I do not want to modify the original.

Any idea what year they changed the cam from a 1/4-28 to a 1/4-26?
 
byrdman76 said:
Any idea what year they changed the cam from a 1/4-28 to a 1/4-26?
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Standard Commando camshafts are all threaded 1/4-26 (1/4 BSF).
 
Only USA made megacycle cams are 1/4-28 UNF
all british (or foreign/oriental) made cams for 20M3S+(up) norton commando are 1/4-26
 
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