BSA Bluestar

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

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

Engine

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

Drive

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

Photos

BSA Bluestar BSA Bluestar

Overview

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