Ultima Engine Serial Number Location
Motorcycle Serial Numbers Vehicle Identification Number (V.I.N.) is located on the engine crankcase and is the same as the number located on frame steering head. Example: 1A 13478 H7 1A = Model Designation 1A = FL-1200 6E = FXEF-80 2A = FLH-1200 7E = FLHS-1200 3A = XLH-1000 9E = SS-250. Where to Find the Engine Serial Number. The serial number is marked on the specified location per engine series as shown below. Kubota Engine Line Up.
S&S Cycles in Wisconsin makes carburetors, performance parts and entire V-Twin engine assemblies for Harley-Davidson and Harley-Davidson-like motorcycles like Big Dog and Ironhorse motorcycles. The engines cost about as much as Harley engines, but they are hand assembled, come with large displacements and have a long-established reputation for craftsmanship. Several very visible marks make them easy to recognize. S&S motors also have unique engine identification numbers which, because S&S manufactures fewer engines, are shorter than Harley engine identification numbers.
Step 1
The label that accompanies this engine is marked with the serial number of the engine. This label must be installed on the motorcycle that contains this engine and none other. The label must be installed on the frame of the motorcycle or a plate permanently attached to the frame of the motorcycle in a location that is visible.
Walk to the right side of the engine and look at the carburetor. S&S engines come equipped with S&S carburetors. These carburetors have a distinctive, polished-steel, tear-drop-shaped air cover that is stamped with 'S&S.'
Step 2
Look at the cylinder heads. S&S engines come with cylinder heads stamped 'S&S ' on the right side of the engine. 'S&S' is also stamped on the right side of the transmission cover.
Illuminate the left side of the motor with a flashlight and examine the federally mandated engine number on the left side of the crankcase at the base of the rear cylinder. Harley-Davidson engines have engine numbers comprised of four letters followed by six numbers. All S&S motors have seven- or eight-character engine codes that begin and end with an asterisk. A typical S&S engine code begins, after the asterisk, with a single letter followed by five digits.
- '2005 Harley-Davidson Service Manual'; Harley-Davidson Motor Company; 2005
- Justin Sullivan/Getty Images News/Getty Images
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For information about a specific make or model of a motorcycle, the owner must have the frame (chassis) and engine numbers. Unfortunately, different manufacturers use different numbering systems and often place the numbers in odd places.
Later motorcycles (post-70s) typically have a stick-on decal or plate on the headstock. Besides detailing the bike's engine and frame number, the decal will show the makers, the model and year of manufacture. However, the model information can be confusing as machines offered for sale after September (in the United States) will technically be the following year's model.
For example, a motorcycle with a year model stated as 10/1982 on the VIN (Vehicle Identification Number) decal will actually be a 1983 model.
Matching Numbers
Early motorcycles generally had the same number for the engine and frame (often referred to as matching). However, occasionally an engine case (containing the original number) may have been replaced due to damage and will not, therefore, have a number stamped on it. Alternatively, the owner may have stamped the new case to match the frame number; a practice that may be frowned upon, but if photographed and logged properly, will not greatly affect the value. (This is a typical example of when it is imperative to save the old parts.)
Locating Numbers
Locating a frame number on an early machine, especially one that is dirty and in need of restoration (barn fresh for example), can be challenging. However, typically, the number will be found in one of the following locations:
- Headstock (the most common location)
- Frame down tubes
- Lower frame rails (at the side)
- Stamped onto the plate that carries the swingarm pivot
- Under the gas tank on the frame's top tube
- Engine mounting plate (front or rear)
Engine numbers are generally stamped into aluminum cases. The location varies between manufacturers but will be located on the crankcases, just below the cylinder.
Ultima Engine Serial Number Location On Mercury Outboards
Help Through Clubs
Identifying a classic motorcycle from its frame and/or engine number is important for parts ordering or valuation purposes. Willing and able to help in this process are the many make specific clubs. In particular, the UK's Vintage Motorcycle Club Ltd. will undertake a search of any vintage motorcycle for a small fee (no charge if they cannot find the appropriate information).
Assuming the manufacturer is still in business, their websites are also a good source of information if the researcher is willing/able to spend time sifting through the various pages.
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Finally, a word of caution: a classic motorcycle may be listed in a sale as a particular year and model but the prospective purchaser must research the engine and frame numbers to ensure they match the claimed model a model year error, for instance, can make a big difference to the value of a motorcycle.