BSA Bluestar

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File:Bsa-bluestar-04.jpg
BSA Bluestar
Manufacturer
BSA
Production 1932 - 51
Engine
Four stroke, single cylinder, OHV, 2 valve
Compression ratio 9.5:1
Top Speed 137km/h / 85mph
Transmission 3 Speed
Weight 162 kg / 358 lbs (wet)
Manuals Service Manual


It could reach a top speed of 137km/h / 85mph.

Engine[edit | edit source]

The engine was a Air cooled cooled Four stroke, single cylinder, OHV, 2 valve. The engine featured a 9.5:1 compression ratio.

Drive[edit | edit source]

Power was moderated via the Multi-plate, wet, cable operated.

Photos[edit | edit source]

BSA Bluestar BSA Bluestar BSA Bluestar BSA Bluestar

Overview[edit | edit source]

BSA Bluestar







The Blue Star range was produced between 1932 and 1936. In 1936 a slightly uprated sports version called the BSA Empire Star was launched with the Blue Star remaining in the model range. In 1937 an entirely new engine designed by Val Page featured in the Empire Star and the Blue Star was dropped from the range. The Empire Star developed into the famous Gold Star in 1938 (also known as the M24). BSA pre war tank logo.jpg

The B33-3 O.H.V. 249cc Blue Star was called the Blue Star Junior and the R33-5 348cc O.H.V. Blue Star was known as the Sporting Blue Star. It was the W33-8 499cc O.H.V. that became the most popular, however, and led to the development of the Gold Star.It was known as the "sea beezer" and it was BSAs fifth best seller.


"250 Bluestar"


"350 Bluestar"


Make Model BSA Bluestar 250 cc, 350 cc and 500 cc (Specifications that follow is for the Bluestar 500)
Year 1932 - 51
Engine Type Four stroke, single cylinder, OHV, 2 valve
Displacement 496 cc / 30.3 cub in.
Cooling System Air cooled
Compression 9.5:1
Lubrication Wet sump
Carburetor Amal, pump
Exhaust Twin, upswept, steel, chrome
Starting Kick
Max Power 40 kW / 54 hp @ 4500 rpm
Clutch Multi-plate, wet, cable operated
Transmission 3 Speed
Final Drive Chain
Wet Weight 162 kg / 358 lbs
Top Speed 137km/h / 85mph
Colours Black frame, chrome plated tank with green panels