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Messages - marssafari

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CB500/550 / Re: VIN & Engine Mismatch?
« on: April 06, 2019, 03:29:24 PM »
Hey all, thanks for all the help/clarification - much appreciated!

@Rob62 & Jamesh_sussex - The VIN stamp matches the VIN plate, it must have been taken off to powder coat the frame.

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CB500/550 / Re: VIN & Engine Mismatch?
« on: April 04, 2019, 12:30:40 PM »
Quote from: Bryanj on April 04, 2019, 12:23:46 PM
Because a bike BUILT late in 74 is a 75 model as they were on ships for a lot of weeks and then in transport across the US (a big place) to get to dealers. Honda frame and engine numbers never match and engines are very difficult to date and people in US would sooner throw in a salvage engine than repair what they have.

Ahh okay - that makes sense! And so the dating of the title - is that correct or should it be '75? And when there are mismatched engine/frame dates, does the dating change? Is it based on the engine's age or the frame's?

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CB500/550 / Re: VIN & Engine Mismatch?
« on: April 04, 2019, 12:27:57 PM »
Quote from: Nurse Julie on April 04, 2019, 12:24:19 PM
To me it looks like that VIN plate has been tampered with. The plate should also be positioned on the headstock if a USA bike (edit...sorry, it is on the headstock now i have put my glasses on !!). Also, frame and engine numbers never, ever match on old Hondas

Sorry - I rotated the image. The plate is on the headstock :)

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CB500/550 / VIN & Engine Mismatch?
« on: April 04, 2019, 12:15:45 PM »
Just looking for some help in identifying the age of my bike.
The bike was imported into the UK in 2016/17, I think, from the US. For my V5C/Title the bike is registered as a 74' CB550 and the VIN plate states "MFD in Japan by Honda Motor Co., Ltd: 7/74". Although I had a look into the VIN and engine serials and neither seem to match the '74 date.

VIN Serial Nº: CB550-1203482
Engine Serial Nº: CB550E-1084002

From the model guide, it seems the frame is from a '75 CB550K1 and the engine is from a '76 CB550K2. So why is the dating '74?
Any help would be greatly appreciated!

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