MikesXS Throttle Screws Modified. Countersink face recut from 80° to 92°. Shortened from 8mm to 6.5mm. Ends center drilled to 1.2mm, for staking
71XS1B Carburetor Bowl Screws01 Original M4 x 0.7 threads.
71XS1B Carburetor Bowl Screws Stock screws are M4 x 0.7 - 12mm A #8-36 screw is about 0.007" larger in diameter and has nearly the same thread pitch
71XS1B Carbs Seals06 Adapter rings allow use of regular throttle shaft seals 11.5 x 12 x 3
MikesXS Throttle Screws Modified. Countersink face recut from 80° to 92°. Shortened from 8mm to 6.5mm. Ends center drilled to 1.2mm, for staking
71 BS38 ThrBush06 Bushing part number. Either 8H 1A, or 8K 1A. 10mm OD, 8mm ID, 8mm long.
71 BS38 ThrBush05 Manufacturer logo on bushing wall.
71 BS38 ThrBush04 The bushing appears to be a split-type, steel-backed, bronze-core, plastic-lined.
TwoManyXS1Bs

MikesXS Throttle Screws Modified. Countersink face recut from 80° to 92°. Shortened from 8mm to 6.5mm. Ends center drilled to 1.2mm, for staking

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1971 XS1B BS38 carburetor rebuild
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