Type Air-cooled single cylinder two stroke engine Transfer port type Schnuerle loop scavenging Cylinder bore dia. 65mm Piston stroke 58mm Cylinder volume 191cc Compression ratio 6,3 : 1 Power output 9,7 hp at 5250 rpm Gearbox Four speed integrated gearbox Clutch Four plate oil bath clutch Neutral selector Hand operated lever and cable Starter system … Read more
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The article by Anders Johnsson the Engineer from Sweden, on “Silicone – Carbon Brush Poison !” featured in the July 2001 Edition of Kabinews was excellent in it’s content and the problems that it highlighted. Having shown the article to a number of people, it created quite a lot of interest, especially among my well … Read more
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When the engine is stopped and the ignition switch turned on, the battery supplies power to all circuits. 1. START Turning on the start switch energizes the start relay. Heavy duty contacts of this relay will supply high current to the stator coils, which are in series with the rotor by way of, HE of … Read more
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Check the following PDF for comprehensive instructions for fitting the choke cable.
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When Fend first designed the Messerschmitt he followed the training of his years in aircraft engineering and made the rear wheel studs just strong enough for the job. This did not take account of the different torque settings, worn nuts, and just plain incompetence by owners. The result was that 8mm studs used on the … Read more
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These notes cover all rear drives after chassis number 65186, but the procedures for the overhaul are similar. Before starting this job, do some diagnostic work to determine the extent of repairs and replacement parts needed. Jack up the car and make it secure and remove the wheel and brake drum to reveal the brake … Read more
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First of all you should realize that the way the Sachs engine is designed, it is impossible to have shifting or jumping-out-of-gear problems. But, since this appears to be happening to many club members, we should look at the possible causes: Jumping out of gear can be caused by 4 different conditions: Improper shifting Neutral … Read more
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All gears can have different ratios in a SACHS engine. By following these instructions you will be able to find out what ratios are in the gearbox without taking it apart: Select first gear, and then turn the crankshaft 31 revolutions. Take out the plug will make it a bit easier. If the mainshaft turns 4 revolutions you … Read more
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Originally, the SACHS 200 engine had 10,2 HP and for Messerschmitts it was later reduced to 9.7HP. The reason for this change was that at 10.2HP it was in a higher insurance category in Germanyand thus raised the cost of insurance for everyone with a car above 10HP. You can differentiate the weaker barrels as … Read more
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Two-stroke engine pistons often run hotter than similar capacity four-strokes because the working strokes are doubled. Exposure of the exhaust ports and contact with hot eases leads to further increases. The heat expansion is therefore greater than with the four-stroke-engine. Greater assembly tolerances are required for pistons. gudgeon pins and piston-rings. to compensate for the … Read more
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This is just one way to do it – it worked for me many times. There have been a further 2 kabinews articles on this using variations of the cutting method. From 1955 – 1959 all KR200 production was normally offered with a clear Perspex dome and there were at least two versions of the … Read more
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Exchange Crankshaft Part No. 0003-Siba 0004-Bosch This part was originally developed by Messerschmitt Club Deutschland some years ago and includes many improved features not available on the original. These are aimed particularly at improving the reliability and durability of the various moving parts. Only the counterbalance weights are re-used from the original crankshaft, all other … Read more
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How to identify Bosch & Siba systems Late in 1958, soon after FMR took over from RSM, a number of changes were made to the engines including a different crankshaft and dynastart system. If you have a Messerschmitt with FMR badges and vehicle identification number plate, then it was normally built with a BOSCH system. … Read more
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We are very fortunate that the KR200 electrical systems are built to the highest standards and are a credit to the original designer. In this case it was probably not Fend although the design and protection systems suggest the work of an aircraft engineer. Even the KR175 is wired to the best available technology of … Read more
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Many Messerschmitt owners will have experienced the alarming increase in exhaust noise that is evident when the nut comes loose. It is extremely difficult to tighten with the engine in place and often the only resort is to tighten it with a screwdriver and hammer. Invariably, this damages the nut. Most service work on the … Read more
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Around ten years ago I visited one of our former members in Florida – Terry Garbig, in the town of De Land. Terry was a motorcycle enthusiast and had a collection of interesting machines as well as a 1956 KR200. Terry’s car was off the road awaiting installation of a new clutch cable and he … Read more
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The KR-200 manual has a procedure for adjusting brakes that is somewhat deceiving. It states that the right brake adjusting screw will adjust the right brake and the left adjusting screw for the left brake. This may appear to be the case but it is not really true. If you look at the exploded view of … Read more
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