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Author Topic: So I thought my bike was a K but does this mean it is an F?  (Read 1403 times)

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Offline RainCityRider

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So I thought my bike was a K but does this mean it is an F?
« on: August 18, 2016, 04:33:06 PM »
Was reading a post earlier and found a thread that made me think my 1978 CB750 may be an F model. Not a K like I had thought. But as Im sure you can guess I am not the first owner so who knows what is original and what has been swapped. Is there any way to tell from other parts or the VIN number? Or rather how can I tell from the VIN or engine numbers.
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #1 on: August 18, 2016, 05:21:53 PM »
Engine and VIN number will usually work plus pictures help.
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Offline Bankerdanny

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #2 on: August 18, 2016, 06:02:56 PM »
Could be both. People combine parts from different bikes all the time. Doea your frame have the ID tag on the neck?
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Offline scottly

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #3 on: August 18, 2016, 06:33:47 PM »
I thought a PD 42 is the proper K8 carb??
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Offline RainCityRider

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #4 on: August 18, 2016, 07:51:46 PM »
Quote from: scottly on August 18, 2016, 06:33:47 PM
I thought a PD 42 is the proper K8 carb??

Apparently there is a PD 42A and PD 42B? saw it in a thread earlier. I will look for it.
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Offline 754

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #5 on: August 18, 2016, 08:12:28 PM »
Kickstand is further ahead on K and under frame..on the F its further back and a bit up the bend.. Do you have disc or drum out back ?
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Offline BomberMann650

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #6 on: August 18, 2016, 08:51:37 PM »
Frank is right again.  +1 kickstand is a dead giveaway
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Offline RainCityRider

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #7 on: August 18, 2016, 10:27:43 PM »
Quote from: 754 on August 18, 2016, 08:12:28 PM
Kickstand is further ahead on K and under frame..on the F its further back and a bit up the bend.. Do you have disc or drum out back ?

Drum in the rear
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Offline martin99

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #8 on: August 18, 2016, 11:02:05 PM »
Bike in your avatar is a K. :)
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Build threads:
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Offline Old Moe Toe

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #9 on: August 19, 2016, 01:42:06 AM »
Yes it might have a K frame but like mine it might have a F2 or k7 motor in it.
Engine number should shed SOME light on it. However still not sure what mine is CB750E 2613894. I have seen F2's with lower engine numbers.
« Last Edit: August 19, 2016, 01:46:50 AM by Old Moe Toe »
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Offline cougar

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #10 on: August 19, 2016, 07:08:46 AM »
Rain ; As long as nothing (numbers wise) has been altered (illegally modified/changed), this should answer your questions as to what you've got. http://www.hondachopper.com/engine/engine_timeline/timeline.html
This will show you what your numbers frame/motor mean. Hope this helps.   ...cougar...     P.S. This is for ID'ing the frame/motor, anything else can be modified , added , deleted , you get the idea.
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Offline RainCityRider

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Re: So I thought my bike was a K but does this mean it is an F?
« Reply #11 on: August 19, 2016, 08:17:25 AM »
Quote from: cougar on August 19, 2016, 07:08:46 AM
Rain ; As long as nothing (numbers wise) has been altered (illegally modified/changed), this should answer your questions as to what you've got. http://www.hondachopper.com/engine/engine_timeline/timeline.html
This will show you what your numbers frame/motor mean. Hope this helps.   ...cougar...     P.S. This is for ID'ing the frame/motor, anything else can be modified , added , deleted , you get the idea.

Sweet, I'll check this out. Thanks Cougar!
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78 CB750K
78 CB750K
78 CB750K
99 ZRX 1100
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