OEM: 67-0360, 67-0362. Following Triumph‘s success with its seminal 500 Speed Twin, after the war, BSA and most of the rest of the British motorcycle industry followed with their own vertical twins. Check out some eBay stuff. 1958, serial CA10R 70XX 9 12 57. 39. Aug 31, 2015 · It started some time ago after meeting up with Shaun. Check your parts book to ensure the best fitment. A useful set of BSA Sheets for BSA A7 A10 1957-1962 112 pages. Posts: 223. Likes: 6. 8%. Feel free to browse through our pages to find what you need. Apr 10, 2014 · Launched in autumn 1949 as a direct challenge to Triumph’s 650cc Thunderbird, Hopwood’s new A10 followed established BSA twin format but was engineered to make an even tougher engine. The 500cc version was called the A7. The A10 does not seem to be the only BSA with codes. timing chain - 500. We provide full engine rebuild services for your BSA motor. Salty Dog. Shaun Gibbons (AKA the Kent Correspondent) covered over 40,000 miles on his Beesa, and knew its engine needed some serious attention. I. $ 2. $ 19. Posts: 164. It was equipped with a sports tank, sports fender and was finished in metallic red, chrome and polished alloy. 1950 BSA A10 specs, performance data, engine specifications, pictures, updated October 2023. 500 OHV Twin 650 OHV Twin A Group with Swinging arm service sheets. Designed by BSA chief designer Herbert Perkins, with former Triumph designer Val Page who had developed the first parallel 650cc twin also contributing. S. 5 imp gal (16 L) The BSA A7 was a 500cc motorcycle model range made by Birmingham Small Arms Company (BSA) at its factory in Armoury Road, Small Heath, Birmingham. It was an improved sports bike member of the BSA A10 series of motorcycles which was developed from the BSA Road Rocket. 1962 Engine Motor Cases Pre-Unit BSA 650 A10 Super Rocket Gold Star Spitfire 550. In Lyle Whitter’s case, the engine was a 1949 alloy two-pipe Ariel Square Four Mk1, and the frame was a 1957 BSA A10 Golden Flash. We left Shaun Gibbons with his A10 stripped-down, and awaiting a complete engine rebuild at the hands of a kindly Geordie named Mike. BSA motorcycle A10 Push-rod SET. BSA was first to respond in 1946 (the first year of Oct 7, 2013 · Not sure of your engine spec--BSA quoted several different ignition firing points over the years for engines in different states of tune. In 1961 a new “357” high-lift racing cam was added. 1961 BSA B40 24 ps, 165 kg. £172. 1962, serial DA10R 71XX 21 11 61. Denmark. BSA service sheets are the closest that BSA came to producing a Original condition! 1952 BSA A10 Golden Flash Frame number: ZA7S 10223 Engine number: ZA10 15686 One of BSA's most beloved engines, the new 650cc A10 twin joined the 500cc A7 model in 1949. The stock timed breather no longer functions correctly with an offset crankshaft engine. Engine Gasket Set – BSA A10 Plunger 1950-62 D-Series. Web Editor. . Happened to me. We would like to show you a description here but the site won’t allow us. Engine Parts. We carry a huge range of BSA A10 Spares & Parts. £ 42. 42 postage. -1 pistons loverly smooth old motor hardly any vibes and was quite quick. maths is ( clutch/motor) x ( rear/ gearbox). BSA Kickstart Return Spring 68-3053 1962-72 500 650 Twins Lightning Thunderbolt. 99 +VAT if applicable. The breather hose is installed before the ignition unit is mounted as the hose clip holding the BSA A10 Motorcycle 650 Pre Unit Engine Cast Cylinder Head 67-1066. cross-section-a10-engine-505-x-600. $79. 2 cu in) long stroke engine. $99. R. BSA V TWIN ENGINE PARTS. g. Joined: Jan 2009. Classic motorcycle replacement parts and spares. Also check the cork washer that's part of the A10's "timed breather hole assembly". BSA’s have there own quirks, of course, but in the end it is a similar animal to the other Brit motors and we approach it the same way with recommendations for upgrades and “new metal” when necessary. Posted. timing bush dead - 500. I have a BSA A10 Goldenflash (1961 originally sold in South Africa) that has been in storage for the last thirty years. pdf 9,430KB. An improved 497 cc (30. Joined: Oct 2014. Jul 14, 2021 · 1960 BSA A10 Pre-Unit 650 Twin 1960 BSA A10 Spitfire Scrambler 1960 BSA A10 SPITFIRE SCRAMBLER The Spitfire was indeed a ‘scrambler’ in the true sense of the word, with knobby tires, high pipes on the left side, one carb, and stripped of everything that wasn’t essential. “. (The 'R' meaning RIGID). Exploded view of Engine, Exploded view of 4 speed gearbox, Information on Lubrication System, Carburation, Brakes & Hubs We specialise in the renovation of the LUCAS K2F and K2FC magneto as fitted to BSA,TRIUMPH and NORTON twins. The 1959 BSA A10 Super Rocket has, at its heart, an air-cooled, four-stroke, 646cc, parallel twin cylinder engine mated to a four-speed manual transmission that can reach a maximum power output of Dec 9, 2018 · Rayg. BSA Dandy 70; Jun 6, 2006 · BSA Service Sheet 214 in your maintenance manual has this info for the s/a A10. But as an option, they offered a very distinctive Gearbox Oil Seal – BSA A7/A10/B Series / Goldstar Swinging Arm Models 1954-63 £ 4. Mar 1, 2018 · Sold as “Undoubtedly the world’s greatest motorcycle,” the BSA A10 Road Rocket was released to the world in 1954. + £25. 99. We stock most engine and gear box oil seal kits for BSA models including unit / pre-unit singles and twins (A50, A65, A7, A10, C15, B40, B25, B44, etc) up to approx 1972. 50. 2 inlet and 2 exhaust. Pre-owned | Business. We include all models from 1950 through 1983. £41. Hi, Rob best place for a haynes manual is in the bin (unless you need basic settings). 1963 was the final year (a partial year) of A10 production as they ramped up production of the new unit-construction 650 A65, which In 1949, BSA enlarged the A7 brief and launched the 650cc A10. Choose from thousands of BSA parts all at everyday low prices. We can source the necessary parts and services to support your rebuild or Oct 16, 2020 · 61 hot rod A10, 89 Honda 650NT . 3. 18ommzlU88_E0sW7779-2xli0wFFCV843. Valves. Aug 4, 2013 · The BSA A10 Spitfire Scrambler was supplied without a light but with a generator and regulator. 1954 was also the first year for a new BSA A10, the twin-carb 650 Road Rocket. 95. Swing-arm A10 frames have a cross-member which doubles up as the gearbox lower mount/pivot, and is likely to be well and Dec 26, 2013 · Posts: 19. Check the item description to confirm this fits your vehicle. SRM’s Steve McFarlane is the engine expert – John Nutting provides his words. Engine Gasket Set – BSA A10 Plunger 1950-62. If you put a check valve on the suction side of an oil pump, you run the risk that the pump will not "prime" when it starts up, with the attendant engine damage. This covers all engines from 1950 to 1963: 500cc & 650cc. It also provides information on the original recommendations for oil changes for these models. UK orders will be charged at the current UK rate. P. Free shipping on many items | Browse your favorite brands | affordable prices. More Information. The appeal of early British Valve Guide, Inlet/Ex (Hepolite) – BSA A7/A10 1949-63 Engine Parts. 1969 BSA 250 Starfire B 25 C Engine Cylinder W Piston US We would like to show you a description here but the site won’t allow us. + EUR 44. Pre-Owned: BSA. It could be used as a road bike or with a change of the sprocket as a powerhouse scrambler. Those whose gearbox and engine case bolt together BSA A7 A10 Motorcycle Service Sheets for A10 Golden Flash A10 Road Rocket A7 Shooting Star. 421. The difference that there may be, that I'm aware of (& may be peculiar to the plunger models), is if the gearbox bolts directly to the rear of the crankcase, instead of being sandwiched in mount plates, Triumph p/u style. Well, as an engineer, I was intrigued to see how the engine was doing. Aug 3, 2020 · I have had six BSA A10,s two of them threw out the left hand conrod destroying the engines,never had a Triumph do that and these were standard tuned A10. 307311. I have a set of B33 cases with 9 5 55 stamped on the flat side of the case just below where the jug mounts. Prices to all countries outside of the United Kingdom exclude VAT. Add to Cart: BSA B44VS 1968 : MAP8774 BSA A7/A10 1960-1963 Nov 10, 2011 · A10 SF 53-54 27 54 19 42 4. This 1963 BSA A10 Spitfire Scrambler is from Re: Engine/gearbox mounting plates. A new line needs to be installed on a spigot next to the ignition unit. But a V8 engine is a good start for me. $136. Queensland, Australia. It all started about six years ago. These later pre-unit clutches are identical between BSA and Triumph except there is BSA mainshaft piece. "I don't know what the world may need. bsa14120805. Vancouver Island Canada. Swing-arm A10 frames have a cross-member which doubles up as the gearbox lower mount/pivot, and is likely to be well and 1961 BSA A10 Super Rocket (totally original & unrestored) 650cc · Petrol · 20,000 Miles · Manual · 4 speed. 3, BSA A65 runs now on Morris 20/50 API SG/JASO MA with external oilfilter. 1 VINTAGE BSA ENGINE GEARBOX STEEL CLUTCH PLATE. We offer a quality & professional engine reconditioning service for the BSA Pre Unit engines. They have stated not to use a spin on oil filter with this rebuild, SRM oil pump is fitted, as their pump needs more oil and a filter would be an We would like to show you a description here but the site won’t allow us. 1958, serial CA10R 78XX 2 4 58. These are gorgeous bikes, and actually make a great off-road ride. In stock. We stock parts for most traditional BSA motorcycles including the A50, A65, A7, A10, B25, C15 and more. Pre-Owned. twowheelspares (211,327) 99. BSA Rocket III 750 1968-1969 : MAP8700 : $18. These end plugs were punched at the factory around their circumference in order to purposefully damage threads and prevent backout. 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. Jul 14, 2021 · 1962 BSA A10 ROCKET GOLD STAR In it’s final year of non-unit construction, BSA slipped the A10 650 twin-cylinder engine into the frame from a 500 Gold Star single, creating a whole new bike, the Rocket Gold Star, a combination of the A10 Rocket and the Gold Star. It was fast, handled well, and the twin was much easier to kick over than the BSA A10 A7 67-287 Outer Engine Timing Cover Outer Engine Timing Cover. The Road Rocket had an A10 engine with an alloy cylinder head, high compression pistons and a high lift camshaft giving 40bhp and a top speed of 109mph. Have never heard of any BSA engine with the letters KNOW stamped on it RGS also had their own frame numbers, starting in 1962 with GA10-101 and ending with said GA10-1914. BSA motorcycles service information, parts lists and manuals. 1967 BSA A65 and A50 Twins - cat 5129. Joined: Dec 2013. 00. Jul 14, 2021 · As with the engine, much of the running gear was carried over from the 500cc A7 line, and so proved to be robust and reliable. Dec 28, 2016 · Britbike forum member. Click. $92. Motorcycles of all kinds -Street Bikes, Dirt Bikes, Cafe, Custom, Racers. 3 cu in) version based on the BSA A10 engine was launched in 1950. The engine will start from cold Then run for a short while, a misfire will develop and the engine will finally stop. 95 . By 1962, pre-unit construction (engine and gearbox as separate components) gave way to unit construction. The BSA A7-A10 Forum » Technical (Descriptive Topic Titles - Stay on Topic) » A7 & A10 Engine » engine breather (again) SMF 2. The bike became more powerful as the decade went on, being relaunched as . **Features**. Inline with the UK / EU trade deal all orders to European Union countries will BSA - 650cc A10 Golden Flash Engine Gasket Set 1950-63. pdf. 4 cu in) air-cooled parallel twin motorcycle produced by Birmingham Small Arms Company (BSA) at Small Heath, Birmingham introduced in 1957. # 826812 10/16/20 5:32 pm. from United Kingdom. 9999. 50 +VAT if applicable. Jul 14, 2021 · 1958 BSA A10 Pre-Unit 650 Twin 1958 BSA A10 BACKGROUND BSA’s A10 was the 650 version in it’s twin cylinder heavyweight line. F12001. Jul 14, 2021 · 1963 BSA A10 SUPER ROCKET. BSA A10 Spares & Parts. 526. 00 Postage. Date your Triumph, BSA, and Norton motorcycle using our complete chart of engine and frame numbers. Posts: 9. AngusDavid. 96 overall ratio . This punching procedure makes removal of the end plugs nearly impossible, even using an impact driver. That designer was Bert Hopwood, of Norton Dominator fame. YA7. 1975 Norton Commando 850 MK III. The plunger-sprung 500cc twin was well thought of by riders of the day as being a solid, reliable workhorse and is reputedly one of the smoothest of the BSA twins. The existing parallel-twin architecture was retained for the A10, with a 360-degree crankshaft and single camshaft at the rear of the cylinder block. More BSA motorcycles 34. s. BSA A7 A10 500 650 Pre-Unit Twin 1950s-1960s Pair of Engine Mounting Plates. Think I'll drive to find a place, to be surly". 1963 BSA A10 Super Rocket. your 24 tooth motor and 42 tooth rear will give very tall gearing if using a 43 clutch and 19 gearbox. The BSA unit twins were a range of unit construction twin-cylinder motorcycles made by the Birmingham Small Arms Company (BSA) and aimed at the US market. Apr 28, 2022 · It’s a situation familiar to many motorcycle wrenchers: In one corner of the garage is a frame left over from a previous project, and hiding under the proverbial workbench is a similarly orphaned engine. Obvious external changes to the established A7 included complete revision of rocker gear, rocker box and fitment, although the single rear camshaft remained The BSA A10 is a British motorcycle that led the rise of the "parallel twin" engine layout, which was to dominate British design throughout the 1950s and 60s. 1963, serial DA10R 86XX 28 5 62. BSA A10 breather hole location ½” to the right of mid-point of ignition system hole. // FOR ALL CHANNEL ENQUIRIES (IN Jun 2, 2011 · Bringing back to life a 1952 B. Aug 31, 2015 · 1959 BSA A10 Rebuild – Part 1. 2, BSA A10 GF runs now on Morris Golden Film SAE 40 classic oil. A10 Golden Flash - the first 650cc parallel twin in the British motorcycle company's range. and to shave development time the 35 horsepower 646cc engine The BSA A10 greatly contributed to the rise of the "parallel twin" engine layout which was to dominate British design throughout the 1950s, 60s and into the 70s. 3:1 compression ratio, produced a claimed 43bhp; there was a stiffened crankshaft assembly too, with the new engine also going into a US-market scrambler. 19 | SMF 1958 BSA C12 on display at the 2019 Idaho Vintage Motorcycle Show -- Caldwell OldMotoDude - A Blog about Vintage Motorcycles. by. 31 August 2015. New main bearing, new main bush, new pistons, sludge trap cleaning an so on. But now, another top designer had been brought in to revise the concept. Common BSA engine issues include worn bushings, blown head gaskets and loss of oil pressure. Best A10 I owned was a 1952 plunger framed model,I fitted a 1960 super rocket crank and rods, 356 cam and low comp 7. 00 +VAT if applicable. Hello, I recently picked up an A10 basket case that came with two engine cases and two random cranks. There was also a new eight inch front brake. If this cork washer is not thick enough you get end play between the breather and the inner timing case resulting in oil coming out of the breathing gallery. Jpeg. A range of 500 cc (31 cu in), 650 cc (40 cu in) and 750 cc (46 cu in) twins were produced between 1962 and 1972, but they were really developments of the older pre-unit A7/A10 model range with less weight. Ledbury. I currently have a bottle of: Castrol Activ 4T - http:/ / productsforyou. Engine Bolt Set, with Studs and Nuts, 1954 and up BSA B Group, Swing-arm, Made in UK ( Alt # EBS3 ) Details Quick View Engine Bolt Kit – BSA – B25 and B50 – 1971-72 – UK Jan 23, 2016 · A short 'spin round the block' on this old BSA shows everything seems in order after a full top end rebuild by Performance Classics, to stop the engine burni 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. Alternative: Categories: Engine Parts, Gaskets, Uncategorized. Well, all A10 are pre-unit. From its launch in 1950, the BSA A10 came standard in a black and chrome color scheme. The most common problem with original magnetos is failure once hot. I have had my 1970 BSA A65L engine totally rebuilt, including roller bearing conversion by SRM, using every SRM update. Designed by BSA chief designer Herbert Perkins, with former Triumph designer Val Page, who had developed the first parallel 650cc twin, also contributing. Spitfires and RGS overlapped only for 1962-1963. They practically dominated desert racing in the Aug 18, 2021 · That's probably a simpler conversion than fitting an A65 engine/gearbox power unit to a later swing-arm A10 frame. Externally, it was a very similar machine. Please use the drop down menu to select which oil seal kit you desire - oil seal kits are sold each. Part Number: 67-3067. As a side note, the A10 and Gold Star clutch [4 spring] are the same as Triumph's but the hub adapter for the BSA can be different [depending on which hub adapter] by 3/16 in. Set of 4 push rods for the 650cc A10 BSA. Pre-Owned: Triumph. Copy Link to Clipboard BSA Pre-Unit A7 / A10. First out was the 1954 A7 Shooting Star, resplendent in its two-tone dark green frame and light green bodywork. 1968 BSA A65 and A50 Twins - cat 5137. Get the best deals on Engines & Parts for BSA A10 when you shop the largest online selection at eBay. It all looks good, but. Of special interest is the SRM Timing side main bearing conversion. Initially, the first model was made at the behest of a customer by a dealer. $ 14. "Motorcycle Repair Devon" is often involved in engine rebuilds for BSA A7, A10, A50, A65 and The BSA Golden Flash is a British motorcycle that led the rise of the "parallel twin" engine layout, which was to dominate British design throughout the 1950s and 60s. You need to source BSA service sheets / Pitmans manuals. A10 sa 54 -63 21 43 19 42 4. com. The Super Rocket was launched in 1957 with the introduction of a new alloy cylinder head and the addition of an Amal TT carburetor. + £8. The resulting overall ratio is how many turns of the motor for one turn of the rear. We offer all aspects ranging from precision engineering to a complete rebuild. 25. “Brian Wooley’s BSA A10 restoration takes a turn to the good this month with the arrival of his rusty engine at SRM Engineering in Cardiff. Vancouver, BC. With the help of other BSAOC members, that was just what it got…. in alignment with the engine sprocket and you may have to shim Nov 4, 2007 · 6675 posts · Joined 2005. Feb 1, 2024 · JOB LOT OF VINTAGE BSA A10 / A7 ENGINE SPARE PARTS IN USED CONDITION LOT 1. I recently found a manual by D W MUNRO 1955 2ND edition 1960 titled bsa twin motorcycles which covers all models from 1946-1959. The plunger A10 had a "bolt-up unit" engine and gearbox, which would be dimensionally similar to an A50/A65. 31st August 2015 Classic Bike Hub UK Reviews. A. Novice poster. Re: BSA A10 special. A clever feature was a quickly detachable rear wheel — useful in those dark days of frequent punctures — and BSA’s patented “crinkle” hub, which Aug 31, 2015 · BSA A7 stuff on eBay. Clutch Extractor Tool – BSA A/B/C/M 6 Spring Models. Christmas had been and gone, and my wait for engine parts and services was nearly over. 07 shipping. BSA A10 Plunger engine gasket set. Apr 10, 2019 · The BSA A10 has a timed breather system as standard, which, although it has its strengths, doesn't work well with higher tune engines - particularly so if be Mar 4, 2022 · Here's our friend Dave Mitchell (from Mitchell's Classics) starting up this 1961 BSA 650cc A10 Spitfire Scrambler from cold. Aug 18, 2021 · That's probably a simpler conversion than fitting an A65 engine/gearbox power unit to a later swing-arm A10 frame. The 1954 BSA A10 Road Rocket is a powerful cruiser that can produce a claimed 40 horsepower at 6000 rpm from its air-cooled, four-stroke, 646cc, parallel twin cylinder powerplant mated to a four Aug 31, 2015 · 1959 BSA A10 Rebuild – Part 2. Posts: 3. There has been a lot of debate in various forums (should that We would like to show you a description here but the site won’t allow us. Hillbilly bike R. #15 · Nov 5, 2007. Most parts (when possible) will be stocked under the original BSA part number. We offer an extensive line-up of high quality parts and components from JCC pistons , Hastings and Grant rings, gasket sets, roller bearings, rod bearings, timing bushings , and more for most traditional BSA motorcycles. Add to cart. Hi, I have just picked up my old BSA A10 engine, that has been rebuilt by an acknowledged workshop here in Denmark, for a lot of money. Substitute wood for the base and two channel pieces. 55 shipping. Apr 6, 2022 · The A10 was launched for 1950 with the 35 horsepower 650cc engine mounted in a “plunger” rear-suspension frame with around 2 inches of travel, though a “hardtail” frame was an option. The range was launched in 1946 using a 495 cc (30. On a bike you can out run the demons. Once the engine is cold again the engine will start. 1959 BSA A10 Police Issue We would like to show you a description here but the site won’t allow us. As the name suggests, the BSA A10 Rocket Gold Star was simply a Gold Star fitted with the Super Rocket engine. EUR 57. fastestlaps. Description. Despite this service bulletin dating BSA Engine Sump Plate Gaskets (1) - 71-1424 - B25 / B44 / A50 / A65. 25 Page – PDF Download – Complete Series – BSA A10 Engine Rebuild. Joined: Jun 2013. or Best Offer. Dec 16, 2013 · 1958 BSA Super Rocket The 1958 season replacement for the Road Rocket, with monobloc carb and 8. The Golden Flash was available in black and chrome, but it was the all-over gold paint scheme that gave it its name and made it such a popular escape from post war austerity. The BSA Super Rocket was a 646 cc (39. Mar 16, 2020 · 1, BSA Gold Stars have external oil filters and engines runs on oil with 20/50 API SG, JASO MA spec. Opens in a new window or tab. Triumph / BSA Slotted Cap Installation Removal Tool. Pushrod, Push rod, Push-rod. A10 Golden Flash; BSA Brigand – late 70s moto-cross style product by NVT with imported 50 cc 2 stroke engine. D14/4 Supreme D14/4 1969 part D14/4 Bushman D14/4B 1969 part B175 Bantam D175 1969 to 1971 B175 Bushman D175B 1969 to 1970 Other points to remember, Rigid frames, early post war machines up to Z series had the frame stamped similar to the plunger or sprung frames e. 4, BSA A70 runs now on cheap classic 20/50 oil with no external oil filter. I have heard of a few people machining A65 cranks for A10 engines. BSA Service Sheet 202 - A7 and A10 The Lubrication System. $38. Therefore only 1,814 RGS were actually made from what I can tell. Top Rated Plus. Tasmania, Australia. co. Find many great new & used options and get the best deals for 1958 BSA 650 A10 Spitfire Scrambler Motor Engine Magneto Generator Crank 474 at the best online prices at eBay! Free shipping for many products! BSA Engine Parts – A10 When the time comes to rebuild your BSA engine we have the parts ready for you to conquer any task. The sludge trap is held in place by two plugs at each end of the crankshaft (crankshaft oil hole end plugs). "Motorcycle Repair Devon" can rectify these issues and help prevent them from coming back for years with our expert knowledge and professional engine rebuilds. Sep 10, 2020 · This service sheet, which was reprinted in June 1956 provides information on how the A10 and A7 lubrication system works. Part Number: 61-3362. Actually purely from memory--5/16" BTDC is more typical of a 500 A7---for an A10 650 something like 3/8" BTDC is more typical. £ 8. Aug 31, 2015 · 1959 BSA A10 Rebuild – Part 2. 1974 Norton Commando 850 MK II & MK IIA. Part Number : BSA320C. 94. Currently putting back together and am nearing the point of seeing if the engine runs, as such I need to drop in some oil. uk. 1-qKePEk9SaGDwYPxC8DVzv-7B_IIJPyB. Nov 7, 2007 · The BSA engine depends on the tolerances in the oil pump, and the fact that you ride the thing every once in a while, to keep the oil in the tank. 0. I knew he’d done a good mileage on his A10 and that he’s been using (as he puts it) cheap supermarket 20/50 oil and had been running it without a filter. Enter the engineer…. I have since deduced that both of these crankshafts belong to A65 engines. Primary / Gear Box Slotted Inspection Caps (W/ O-Ring) - 57-2166 & 70-8782. Britbike forum member. ck up vt gj gu nh mj yd he bz