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cb750 dohc Vin / Engine number Identification

ajh1

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Hi
New guy about to buy a CB750F to restore, wonder if someone could help me identify a bike from its Vin Number.
Its supposed to be a CB750F 1980 and has KPMH speedo so guessing European

Vin number is RC04-10139xx (All the documents Ive found so far say cb750f numbers start from RC04- 2000001)
Engine number is RC01E-41029xx which I think makes it a CB750K. Are there major differences between the K and F engines?

Really appreciate any help, dont want to buy unless the numbers make sense

Thanks in advance
 
Hi
New guy about to buy a CB750F to restore, wonder if someone could help me identify a bike from its Vin Number.
Its supposed to be a CB750F 1980 and has KPMH speedo so guessing European

Vin number is RC04-10139xx (All the documents Ive found so far say cb750f numbers start from RC04- 2000001)
Engine number is RC01E-41029xx which I think makes it a CB750K. Are there major differences between the K and F engines?

Really appreciate any help, dont want to buy unless the numbers make sense

Thanks in advance
Engine wise, this post might give you some useful information (its comparing 79models)
https://www.cb750.com/threads/cb750kz-1979-and-cb750f-1979-engine-differences.7373/#post-35163

Thanks for the reply - A bit more info that might help someone else. I think my chassis is a Japanese bike. Based on using cmsnl.com who allow you to put a vin number in to search for parts. And they recognise RC04-101 as HONDA CB750F 1980 (A) JAPAN RC04-101. And I think Japs use KPH speedos. After extensive searching it was the only website I could find that recognised the RC04-1
 
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