Yamaha Recall Letter & Installation Instructions, Dated Oct. 10, 1981. Letter was sent to Viscount owners for recall of original Viscount cast aluminum fork. Letter was included with package of replacement fork, headset and/or brake hanger, as well as a redeemable coupon for bicycle shop in lieu of payment ($20). This letter was included with the 'death fork' I purchased on eBay a number of years back. I lost my original letter decades back.
Sending out the recall letters in 1981 was really slamming the stable door after the (alloy) horse had bolted. The 'death forks' (although Mk III ones were not deadly) were produced from when Lambert started in 1972 through to probably c1977 (? - a good question for any ex-Viscount workers out there: when did Viscount stop using the alloy forks?) I suppose the need for the recall shows how badly Lambert/Viscount managed the original problem - apparently they never recalled the earliest versions, just made incremental improvements until they stopped breaking.
Meant to add - OT - 10 October is my birthday. It was in 1981 I bought my first Viscount - a lugged (all steel!) Aerospace 400 - but I can't remember when exactly.
I toyed with using an old Raleigh fork but this was unexpected nice piece of Viscount folklore and a much more appropriate choice. I did need a headset and a shiny new brake guide/QR will also come in handy. Too bad the saddles have such a bad reputation for ride ability otherwise I'd own half of your Pro and would have paid for it myself!
Got the Yamaha package today.... well packed VTChuck! Still has the original shipping address to whom is now 63 year old gent in Illinois after doing a people search. I'll bet he'd be surprised to see that package still kicking around in such nice original shape.
Vt Chuck, wondering if you learned about the history/former life of your new Pro? I never tire hearing about what these bikes have "seen" and if they have a story to tell from their previous lives