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Author Topic: Cam Shaft  (Read 879 times)

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Offline DanJ

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Cam Shaft
« on: August 07, 2017, 12:19:13 PM »
Will a 1978 CB750K cam shaft fit the 1973 CB 750K? It's a Different P/N on the honda website
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Cam Shaft
« Reply #1 on: August 07, 2017, 12:24:22 PM »
Sure will and you'll probably like the results  ;)
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline flybox1

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Re: Cam Shaft
« Reply #2 on: August 07, 2017, 12:26:03 PM »
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline DanJ

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Re: Cam Shaft
« Reply #3 on: August 07, 2017, 02:01:37 PM »
Great thanks
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Cam Shaft
« Reply #4 on: August 07, 2017, 02:03:24 PM »
+500 rpm redline too
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline TwoTired

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Re: Cam Shaft
« Reply #5 on: August 07, 2017, 08:23:01 PM »
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Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
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  • Posts: 14,929
  • Bought her new 4/75
Re: Cam Shaft
« Reply #6 on: August 07, 2017, 08:29:22 PM »
The 78 K had the F2/F3 springs but the F/F1 and the K7 all had the -300 valve springs with the 8500rpm redline. If you can get the later springs definitely do so. Last thing you want to do is float a valve into a piston. The stronger cam will help the top end HP but that COULD bite yer ass depending on how you ride.
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline DanJ

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Re: Cam Shaft
« Reply #7 on: August 08, 2017, 08:41:05 AM »
I take it easy on the CB, if I have the need to get stupid I have a ZRX for that.
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