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Royal Star & Thunderbolt) from 1969-1972
Gear boxes that feature the 5-speed variation must use the shift cam plate we stock under 57-4889 / T4889 - plate works with 650 & 750 models with only the 5-speed box only
OEM part number is 68-9224
They both have the same thread pitch (16TPI)
Time to rebuild that top end on your trusty Triumph
Amal Monobloc / Concentric Main Jets - Choose Size Size:#240 Royal Star & Thunderbolt) fromFor sale are new Amal main jets. All Amal main jets are 100% authentic and are made by the Amal factory in the UK. Our Amal main jets are suited for all Amal Monobloc carburetors and Amal MKI and MK1. 5 Concentric carburetors (375, 376, 389, 689, 626, 926, 928, 930, 932, etc) as fitted to most vintage Triumph, BSA, Norton, Matchless and AJS motorcycles. Amal main jets are both suited for 2 stroke and 4 stroke applications. Each Amal main jet has been