I ordered this item "All SV 500/600cc to 1931" Reference S1-1571 which says 1 3/4" OD 1 1/2" ID so I ordered one ....it's the wrong size....which is fair enough as I got a 1927 M9 :) so what size do I need? the "Valve cap sealing washer" Reference S1-MB-06 seems more like the correct size although it's not an exhaust sealing washer nor is it for a model 9 anyone know and where can I get a couple.......cheers
If you have another look at the Shop, you will find the correct washer for the OHV models from 1927 to 1938. It is listed as S1-MB-07, and is Marston part number 3410.
P.
Cheers Paul I'll order one ASAP 👍