Question about 1985 Ducati 750 F1

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Frame number Hello all I am new to this forum so please bear with me. Back in 1992 I purchased a used 1985 750 F1 in Toronto Canada and have brought the bike back with me in Hong Kong. Back when I bought it I was still quite new to Ducati and I only knew what I was buying and that was it. It is now undergoing restoration and my mechanic brought to my attention the frame number discrepancy with the ones in his book. I was wondering whether any one can tell me If I have a factory bike or a piece together one. The frame number had been restamped to read as the following: 7500124 My mechanic told me the number should start at about 7500525

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DM3H99R91B012329

ZDM = manufacturer code (i.e. region code Z = Europe, country code D = Italy, manufacturer code M = Ducati)

3H99R = TYPE = model information: model, engine type (manufacturer assigned code). For US models, Ducati uses the last three digits to indicate the engine type.

9 = check digit for factory use. A single number or the letter X (varies) used to verify the accuracy of the transcription of the VIN

1 = Model Year 2001

A = model year 1980 B = model year 1981 C = model year 1982 D = model year 1983 E = model year 1984 F = model year 1985 G = model year 1986 H = model year 1987

J = model year 1988 K = model year 1989 L = model year 1990 M = model year 1991 N = model year 1992

P = model year 1993

R = model year 1994 S = model year 1995 T = model year 1996

V = model year 1997 W = model year 1998 X = model year 1999 Y = model year 2000

1 = model year 2001 2 = model year 2002 3 = model year 2003

B = plant of manufacture (manufacturer assigned code), B = Bologna

012329 = six digit serial number. Some manufacturers restart at 000001 each model year, while others just continue sequentially. Some use different number groups for different models.

Posted on Dec 28, 2008

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So according to his book my bike does not exist. The book that he is using is titled something like Ducati v twin restoration guide. He is a good mechanic but I would like to find out more before proceeding further with the restoration. Can anyone help ? Thanks in advancehe numbers on the frames and engines mean nothing when working out a model and age. In the factory engines were not matched to frames via their numbers they were simply put together. Any book that gives definite numbers for a model is full of sh!t. A good example is all the pics you see of crates of engines in no particular order. There was no need for an engine to match a frame number so they never went to the trouble. The engines were used in many models and bikes, including your era, the Cagive Elephant etc.... Your bike is probably correct, even though the book says it shouldn’t exist. The numbers for the books come from the first number to just the last number, and are not necessarily relevant for any number in between.,,,

Posted on Nov 10, 2008

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