He was telling me last year , that he was in same regiment as my Brother, [ RCT ] based in Taunton in 1975 ..
300 mls apart, and we had more than bikes in common ,,
Yip meaty " Classic"s , , I was out with 2 guys today, 1 AJS 500. & Matchless 500 . I had a puncture [ DT] dumped it in someones drive, got a backy , then took out an LC350, and after 75 mls the rotor fell off, .
The principal of a choke [ enricher] is that fuel vapour condences on the cold cylinder [ head/valves on a 4 stroke] [ barrel/piston in a 2 T.]
Hence the need the richen the mixture when cold, ,,
Hi smoker, the pumps are foolproof, they seldom go wrong, it be your mixture [ air/fuel.] check what jets are in carb, as lots of meddling will have been done, , set air screw to factory settings also.
Aye jim, mines is MotoGp. heavy duty, don't know who makes them,,, By the way, we did west coast today, , traffic was heavy,[ glen coe] Filling station attendant said "its the first dry Sunday since April. Everyone and there dog was up that way,,,