Bsa b31 specification. The big-end was a specialist job because of the realignment requirements, but at least it’s straightforward with a simple bolted-up crankpin. Technical Data Nov 29, 2011 · In 1949 the two competition models began to break away from the broad specification that applied to the B31 and B33 roadsters. So when he spotted a sound 1958 BSA B31 frame, complete with V5C, at Rufford Autojumble, the project began – and within little more than a year he had, not one, but two, superb machines which epitomise motorcycling fun… We stock oil pumps to fit all BSA A7 & A10 models (Goldenflash, Road Rocket, Rocket Goldstar, Shooting Star, etc) from 1950-1963 as well as C, B & M models from the M20, B31, B33, B34, and others Check your parts book to ensure that this pump will work for your application. Produced initially with rigid frame and telescopic front fork Find a huge selection of top quality BSA motorcycle parts and OEM replacement spares for your BSA motorbike and vintage motorcycle. Note: This is a sub-section of BSA: Motorcycles. BSA motorcycles were made by the Birmingham Small Arms Company Limited (BSA), which was a major British industrial combine, a group of businesses manufacturing military and sporting firearms; bicycles; motorcycles; cars; buses and bodies; steel; iron castings; hand, power, and machine tools; coal cleaning and handling plants; sintered metals; and hard chrome process. Surely, a pipe is the best way to get rainwater water down from a roof? May 25, 2020 · THE LIFE OF AN UNDER-RECOGNISED CLASSIC Launched in 1947, the 499cc BSAB33 was based upon the 1945 348cc B31 which in turn was derived from the company's pre-Second World War singles, though with the more modern addition of telescopic forks. The BSA B31, introduced in 1945, was the first new model introduced by the company after the Second World War. This service bulletin is dated March 12th, 1964 and it will offer you the BSA point of view of what they recommend for oil change intervals what type oil to use. The first B33s were built around rigid frames. B31 350 1945-59 348cc OHV single, 365lb, 80mpg, 75mph A robust engine fitted initially in a rigid frame with telescopic forks. At the time of its introduction, the B31 was BSA's sole all-new model, joining the lightweight 'C' and heavyweight 'M' ranges carried over from pre-war days, and was produced Even after a swinging arm was fitted in ’54, handling remained weird above 60mph. Up front sat a telescopic fork, a first for BSA. 5 in) bore and stroke, all alloy 348 cc ZB32 type Gold Star was first shown at the Earls Court motorcycle show at In the 1930s, the company boasted that one in four motorcycles on the roads in the UK was a BSA. The 499cc "all iron" BSA B33 arrived in 1947. At the time, they were producing only single cylinder models. We have helped thousands of customers complete BSA A set of 10 quality zinc plated engine mounting bolts for BSA B31 and B33 models from 1954. Find a huge selection of top quality BSA motorcycle parts and OEM replacement spares for your BSA motorbike and vintage motorcycle. SRM Oil Pump Specifications. Handlebar Sep 8, 2007 · BSA’s rugged, workaday B31 was manufactured from 1945 to the end of 1959, its overhead-valve engine providing the basis for the renowned Gold Star sports roadster. 2 cu in). Also for: B32 gold star, B32 competition, B34 gold star, B33, B34 competition, 1946 b31, 1946 b32 gold star, 1946 b32 competition, 1946 b34 gold star, 1946 b33, 1946 b34 competition, Oct 23, 2013 · BSA B31 350cc single. We have helped thousands of customers complete BSA BSA B31; BSA Gold Star; BSA Bantam; 1950-1959. 110 km/h / 70 mph. El BSA B31, presentado en 1945, fue el primer modelo nuevo presentado por la empresa después de la Segunda Guerra Mundial. View online or download Bsa 1953 B31 Instruction Manual. The B32 was a competition version and the B33 Vehicle history and comps for 1953 BSA B31/B33 - including sale prices, photos, and more. Handlebar The fork stanchions listed below are made to the original specification in the UK using British steel BSA Plunger B31/A7 etc: 68-5030: Fork Stanchions, for use They would however have some machines in stock so that it is possible that a July model may be to either the previous or the next year's specification. Dec 19, 2023 · The 1949 BSA B31 has at its heart an air-cooled, four-stroke, 348cc, single cylinder powerhouse mated to a four-speed manual transmission that can produce a claimed 22 horsepower at 6000 rpm. This would become a Gold Star tradition. I think both these statements are sus, but can anyone please give me a definitive answer. 8 in × 3. 5 Cutaway Slide 260 Main Jet 106 Needle jet 30 Pilot Jet A 1933 BSA B1 motorcycle at the Auburn Cord Duesenberg Automobile Museum in Auburn, Indiana, U. BB31 4515. Controls & Features. B31 motorcycle pdf manual download. The 500cc bike gained a wider rear tyre, heavier flywheels and a larger inlet valve but was otherwise much the same as the 350. Motorcycle Specifications Overviews and Road Tests. 00. Based on pre-war designs, it used a single cylinder four stroke engine that displaced 348 cc (21. As such, BSA kept costs low by sticking with the ancient plunger rear suspension, just as the rest of the BSA lineup was switching over to swing-arms. Handlebar Controls. 2 cu in) B31 and subsequent 499 cc (30. 1955 BSA B31. Outwardly identical to the B31, the B33 featured a slightly larger carburettor, heavier flywheels and a larger rear tyre. Jan 5, 2022 · BSA came out of the war with a reliable side valve single, the M-series, which had been well and truly tested in the toughest of environments. But before we look more closely at the B31, it is handy to look at where it came from in the lineage of BSA pushrod singles. I have been told that the B32 is not as "popular" as the B31, because B31 can be converted to Gold Star spec. In 1948, BSA revived the Gold Star name with the B32 in 350cc. 276C/1B: Type 6, 1″ bore, vertical float Jan 5, 2019 · BSA B31 500 "Stargazer" Greeves 200 "Blue Meanie" Greeves 350 Ducati 250 GM500 sprint bike "Deofol" Rickman Jawa 500 "Llareggub" '35 & '36 OK Supreme Yamaha RD250B Find a huge selection of top quality BSA motorcycle parts and OEM replacement spares for your BSA motorbike and vintage motorcycle. We have helped thousands of customers complete BSA Order BSA Pre Unit, B31, B32, B33, B40, B44, B25, C25 1947-55 & more 7" Single Sided Front Hub Wheel Rims & Spokes motorcyle wheel rims & spokes online now. S. Described by The Motor Cycle as "most economical, comfortable and fast, handy in traffic, excellent steering and brakes", the B31 is one of the most popular machines on the road. A. Jul 7, 2014 · BSA’s first new model after WWII, the B31 was a single-cylinder four-stroke designed to be used as basic transport. Produced initially with rigid frame and telescopic front fork, the B31 gained (optional) plunger rear suspension in 1949 and an all-new swinging-arm frame in '54. 1946-1955. This factory Workshop Manual covers iron B31 and B33 singles of the immediate post-war era up to the 1954 advent of swinging-arm. 5 cu in) B33. We live in a world where complexity, for its own sake, is held as a benefit. BSA's rugged and workmanlike B31 was introduced to the public in late 1945 for the 1946 season and continued with improvements until it was finally pensioned off in 1959. AVERY/1124 . Many outstanding features combine to make this machine far ahead in performance and value - duplex cradle frame, swinging arm rear suspension, full width The BSA 350cc B31 and B33 500 cc workhorses originated in immediate post-war years with contemporary modern styling, albeit owing much of their engineering to pre-war progenitors. Even today you’ll see the odd B31, tired and careworn, providing day-to-day transport. Reg No: 576 UXP. Set includes bolts with the following specification: 3/8" x 7 3/4" (197mm)Stud 3/8" x 6 3/4" (170mm)Stud 3/8" x 4" (100mm)Stud x 2 3/8" BSA B31 B 31 1950 Show winning restoration **A MUST SEE* 248 miles. The B31 was introduced as the only new model to be added to Mar 31, 2021 · #BSA #B31 #SriLanka #350cc #ceylonTwoWeelsBSA B31 350cc | Vintage Motorcycle | Specifications | Exhaust Sounds | Sri Lanka 🔥🔥One of the Best BSA B31 in th Jul 10, 2013 · 1952 BSA B31 . Strong bottom end but poor starting, gearbox and valvegear. BSA Technical Information | M20 Sidevalve General Specifications | Sheldon's Emu BSA B31; BSA Gold Star; BSA Bantam; 1950-1959. At the time of its introduction, the B31 was BSA's sole all-new model, joining the lightweight 'C' and heavyweight 'M' ranges carried over from pre-war days, and was produced After the war, in 1945–46, BSA introduced the iron engine 348 cc (21. BB31S 4724 Engine no. T15 & T20; B31/32: 1946-54. These were custom-ordered then built by hand to the customers' specifications & bench tested. Aug 1, 2017 · The blog post that I will be sharing with you today is in reference to a BSA service bulletin titled "Correct Lubrication" for BSA Motorcycles. Jul 10, 2013 · The engine and gearbox lived up to BSA’s reputation for durability, needing nothing more than the usual rebore/piston and a complete set of bearings. 1956. 5. BSA B31. B31 350: 1949-59: B32 350: 1947: BSA was founded in 1861 in the Gun Quarter, Birmingham, England by Bsa 1948 B31 Vintage Motorcycles Pdf User Manuals. The BSA Bold Star was available in two displacements, the 348cc B32 & the 499cc B34. Thanks Aug 24, 2020 · Initially, I was working on the first Bantams but soon progressed to the C11s and the bigger singles, and then to the racing workshop where I was trained to fettle Jack Difazio’s iron-engine B31 – which ran on dope – and customers’ Gold Star engines. The humble B31 was the basis for the sporting post-war Goldstar, both engine and chassis sharing many parts, and many B31s were converted to ‘Goldstar’ specification with Oct 23, 2013 · BSA B31 350cc single . Worcestershire. We have helped thousands of customers complete BSA The information below is specific to the BSA - B31 58, showing anything for service information to the amount of fork oil or even the tyre pressures. Oct 15, 2018 · BSA’s B31 has long been a favourite of mine amongst the long list of desirable Brit bikes to be resurrected – I mean restored – and for Tony it was a special one. From the restorer’s point of view, the big advantage of a bike such as BSA’s daily-workhorse 350cc B31 single, is that it remained in production for so long – modified over the years, naturally, but not to any significant degree – that parts are still relatively easy to obtain; even for a 1946 example, as seen here. Both rigid and plunger are featured as well as both gearbox types and all hub variations in all brake sizes (except 190mm). BSA's rugged, workaday B31 was manufactured from 1945 to the end of 1959, its overhead-valve engine providing the basis for the renowned Gold Star sports roadster. Originally an armaments company, (BSA = BirminghamSmall Arms), the co Aug 31, 2015 · The B33, for those of you not so familiar with it, was the big brother to BSA’s post-war B31. 350cc. It also comes with features such as a telescopic front fork, dual plunger shocks as a rear suspension, a dual seat, a center stand, laced wheels, a large BSA B31. Initially, it had a rigid frame and telescopic forks, the first use of such on a BSA. Its first new postwar bike was the B31 A 350cc OHV single, based on designer Val Page’s 1940 B29 model. Also, that the B32 motor is exactly the same as B31. View online or download Bsa 1954 B31 Instruction Manual. Many a B31 has rumbled on, refusing to break, for years. View online or download Bsa 1948 B31 Vintage Motorcycles Instruction Manual Specifications. CNC from dural alloy Jul 14, 2021 · 1953 BSA B33 1953 BSA B33 BACKGROUND The 500cc B33 and its smaller-sister the 350cc B31, were intended to be “everyman’s motorcycles”, which means basic transportation for budget-minded Brits just trying to get to work. Technical Data. Based on pre-war designs, it used a single cylinder four stroke engine that displaced 348cc. Plenty of usable B31’s with sensible At the time of its introduction, the B31 was BSA's sole all-new model, joining the lightweight 'C' and heavyweight 'M' ranges carried over from pre-war days. The B31 ran 71mm x 88mm engine dimensions while the bigger bore B33 headed toward the nearly-square 85mm x 88mm. Oct 26, 2005 · I have a 1950 B32 which I am trying to sell (restoration project). We have helped thousands of customers complete BSA Jul 16, 2012 · He didn’t want to do it on the usual kind of Dakar machine though, he fancied doing it on a classic. From the restorer's point of view, the big advantage of a bike such as BSA's daily-workhorse 350cc B31 single, is that it remained in production for so long – modified over the years, naturally, but not to any significant degree – that parts are still relatively easy to obtain; even for a 1946 example, as seen here. The BSA B31 had an OHV 350cc engine and remained in service for many years. FIND Search Listings 709,900 Follow Markets 8,783 Explore Makes 647 Auctions 1,122 Dealers 277 BSA’s B31 is unusual in the classic world, in that there wasn’t really much of a gap between it being ordinary workaday transport and it becoming a classic worthy of restoration and loving care. Parts included for BSA Bantam, BSA C15, BSA A10, BSA Goldstar, BSA Rocket, BSA B31, BSA B40, Lightning, Thunderbolt, and many more popular BSA UK made parts. I remember thinking that when I first saw a gutter chain on a building. The bottom end is to BB31 spec, with new big end assembly, but with a polished and lightened aluminium con rod as to ZB32 Goldstar long rod spec. Join UK BSA owners club; BSA Bantam Owners Club; BSA Clubs around the world; Triumph. View and Download BSA B31 instruction manual online. 1954 BSA 348cc B31 Registration no. The code consisted of three parts, the first as two letters giving month and year respectively, the second was a five digit number and the third a model code. 349cc · Petrol · 38,118 miles · Manual . 4. B32 purchasers were given the option of an aluminium alloy cylinder head and barrel, and the following year this applied also to the B34. The 1953 BSA B33 We have 1 BSA B31 manual available for free PDF download: Instruction Manual Specifications. The 17 horsepower engine was sufficient to get the bike up about 70 miles per hour. 1964 Specifications; 1965 Models; 1966 Models; BSA Motorcycles 1956 Bsa 1953 B31 Pdf User Manuals. B31 348 cc 1945 1959 overhead valve B32 348 cc 1946 1957 Bsa 1954 B31 Pdf User Manuals. BSA 1956 B31. Sep 5, 2010 · The engine was rebuilt to early Goldstar touring specification, the Cylinder head ported and gas flowed to BB32 dimensions with BB32 valves, springs and cams. The 1949 BSA B31 has at its heart an air-cooled, four-stroke, 348cc, single cylinder powerhouse mated to a four-speed manual transmission that can produce a claimed 22 horsepower at 6000 rpm. Technical specifications, photos and description: Condition: Used: Sell Bsa B31 Motorcycle Other BSA motorcycles offered via internet auctions: price AU $7,500. Basado en diseños anteriores a la guerra, utilizaba un motor monocilíndrico de cuatro tiempos que desplazaba 348 cc (21,2 pulgadas cúbicas). 348cc B31 and 499cc B33 Models only. PPX 715 Frame no. At the time of its introduction, the B31 was BSA’s sole all-new model, joining the lightweight ‘C’ and heavyweight ‘M’ ranges carried over from pre-war days. Asking price. Specifications. Post-WW2, BSA acquired Triumph motorcycles in 1951 and demand was still sufficient for BSA to create a stand-alone entity for its motorbike production, by creating BSA Motorcycles in 1953. If you would like to contribute any missing information, please use the edit link below. It was based upon the 1945 348cc B31 which was derived from the pre-WW2 OHV BSA pre-unit singles. £7,500. After many years of rebuilding several other famous marques, including the legendary Commando, he is now, finally, turning his attention to the bike that he went everywhere on The BSA B31, introduced in 1945, was the first new model introduced by the company after the Second World War. BSA 1946 to 1953 Workshop Manual. Jul 1, 2019 · The B31 also owed much to the 1940 model B29, but featured a redesigned top end with iron barrel and head which was a visual difference from the pre-war OHV singles. Gold Star’s tuned B31 mill in better chassis; rorty but far too expensive. All bolts have CEI threads. Best one’s the A10 inspired duplex frame used in the last four years of production. Reg No: NVS 568. So what did I need? Well, the special forward frame-mounted footrests (these bring a new dimension to the term ‘heavy metal’), rear mudguard (fender) brace, 21-inch BSA's rugged, workaday B31 was manufactured from 1945 to the end of 1959, its overhead-valve engine providing the basis for the renowned Gold Star sports roadster. In preparation for the 1949 model season, and to attract sporting buyers, the 71 mm × 88 mm (2. The B31 had been announced before the end of the war as BSA geared up for a postwar boom. One train of thought is ‘if something looks too simple to work, it probably is too simple to work’. Apr 1, 2016 · BSA was one of the largest motorcycle manufacturers in the world in the1940s and 1950s. Aug 31, 2015 · Yes he does some Clipper parts and a whole host of other BSA Goldie parts for both the road-going and off-road bikes, made to original factory dimensions and specifications. Genuine AMAL Carburettor 376/2 New 1" Bore Size Fits BSA B31 UK Spec from 1955 on-wards This carburettor is built to the original specification and comes supplied with: 3. ltnbsq mrwn ojwfzrc qnebt kvayftnw dwuip rvsf xqjeif jpy rbpxe