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Author Topic: F tank vs. K tank  (Read 1145 times)

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Offline clintinga

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F tank vs. K tank
« on: March 08, 2006, 02:21:18 PM »
Hey guys,

I was wondering if the K tank will fit my bike and my seat?  I have a 76 750F.  Are the seats for the k and f models different?

Thanks,

clintinga
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supersport_CB400F

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Re: F tank vs. K tank
« Reply #1 on: March 08, 2006, 02:26:30 PM »
I'm not sure what fits what, but the search option will give you lots of options I'm sure  ;)
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Offline GroovieGhoulie

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Re: F tank vs. K tank
« Reply #2 on: March 08, 2006, 02:35:43 PM »
It should mount, but the F seat was shorter to mount up to the longer tank.
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Offline cbjunkie

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Re: F tank vs. K tank
« Reply #3 on: March 08, 2006, 02:41:29 PM »
clint - i'm currently running a 75F on my 71K - there are some slight differences in the mounts and the overall diimensions of the two tanks...

the F tanks, the Super Sport tanks, have the same front mounts as the earlier K tanks, however the tanks are longer in overall dimensions.

the rear of the F tank hangs out over the rear mounting bracket by an inch or more, whereas the rear of the K tank is flush with the rear mounting bracket.

the most noticeable result of these design differences is that the F SEATS are shorter! than the K seats...so, if you put a K tank on an F bike with an F seat you will get a 2-3 inch gap between the front edge of the seat and the back edge of your new tank.

also.  the F tank's rear mounting bracket is WIDER than the K body's bracket seat... that means that your rubber tie-down cushion will not fit properly - though as I've done the OPPOSITE of what it is you are trying to do I've just stretched the rubber around the wider bracket and it seems to work just fine, if looking a little wonky (but the seat covers all this up).

junkie out.
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1972 CB350 (deceased)

sometimes naked, sometimes mad -
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Offline Ted Nomura

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Re: F tank vs. K tank
« Reply #4 on: March 09, 2006, 02:03:04 PM »
K tank will fit the F frame but not the other way around and there will be a big gap between a seat and a tank. It's better to keep the Ks and Fs separate.
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1969 Honda CB750, two 1970 CB750, two 1972 CB750K2, 1971 CB500, 1975 CB550, 1976 CB400F, 1968 CL450, 1973 CL450, 1974 CB450, 1970 1/2 SL350K1, 1971 SL350K1, 1972 SL350K2, 1972 CL350, 1972 CB350, 1983 CB1000C, 1976 Kawasaki KZ900A4, 1976 KH500A8, 1979 KZ400B, 1983 ZN1300, and so on and so on...

eldar

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Re: F tank vs. K tank
« Reply #5 on: March 09, 2006, 02:38:49 PM »
You can probably change set mounts and remove that gap. If you swap one part, do the other if you can.
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Offline cbjunkie

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Re: F tank vs. K tank
« Reply #6 on: March 09, 2006, 02:40:43 PM »
sure, ted...unless you don't want to...  ;)

i happen to like the F tank. unlike you i don't have one of each year - we pick our battles.
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1971 750K1
1972 CB350 (deceased)

sometimes naked, sometimes mad -
now the poet, now the fool -
thus they appear on earth,
the free men.
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