Author Topic: Cb750k2, can i use chain guards from other models?  (Read 538 times)

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Offline Odin

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Cb750k2, can i use chain guards from other models?
« on: June 03, 2019, 05:01:39 PM »
Hi Folks

I would like to put on a chrome chain guard on my cb750k2, i wonder if any of you know if it will fit from other cb750s, for example 1981 750k, or f or something?

Thanks in advance for ur help

Offline Tracksnblades1

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Re: Cb750k2, can i use chain guards from other models?
« Reply #1 on: June 03, 2019, 08:29:35 PM »
The 1975 - 1978 CB 750F bikes all have factory chrome chain guards.

The 1975 F0 and the 1976 F1 both have the narrow single bearing output shaft (530 chain) similar to the early K models.

I know we tried to put a 76F1 chain guard on my buddy's 75K and something didn't line up.
I'm thinking the 76F1 has a slightly longer swing arm. The rear bolt hole didn't line up. It may have been just the rear bolt hole didn't line up. It was the chain guard off my F1 we used temporarily just to see if it wouldn't fit.

 He had put an RC sidewinder on his K and wanted a chrome chain guard where the original pipes were. He ended up with an universal aftermarket chrome guard that he never was happy with.

Back then everyone was running 130/90 16 or 17 rear tire and 4 inch rims and it would rub whereas the F1's chain guard wouldn't. He had that area machined out which weakened it some.
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Offline 754

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Re: Cb750k2, can i use chain guards from other models?
« Reply #2 on: June 03, 2019, 09:08:04 PM »
71 guard is plastic. 71 thru 76 k should fit.
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Offline PeWe

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Re: Cb750k2, can i use chain guards from other models?
« Reply #3 on: June 03, 2019, 09:23:02 PM »
Yamiya sell chrome chain guard. My K6 with K2 swingarm has one. When I ordered mine they had only the more expensive version.
http://www.yamiya750.com/index.php?main_page=index&cPath=246_251_142_94
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Odin

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Re: Cb750k2, can i use chain guards from other models?
« Reply #4 on: June 04, 2019, 04:35:40 PM »
Hi again

Thank you for ur answers, now i know what to look for, and possibly will buy one of those new ones.