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Author Topic: CB400 Valve timing  (Read 3086 times)

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Offline wlh1950

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CB400 Valve timing
« on: October 16, 2008, 09:57:25 AM »
I am reassembling the engine of my 400F and have the following question.According to the manual I have aligned the spark advancer with the matching mark.
Next I installed the cam chain to the cam sprocket so that the matching lines are aligned with the upper surface of the cylinder head. But then it says: 'Install the cam sprocket to the camshaft with the two bolts'.
Now I would say that this can be done with the cam shaft in two positions (180 degrees different). So my question is: what is the required position of the cam shaft?
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KingCustomCycles.com

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Re: CB400 Valve timing
« Reply #1 on: October 16, 2008, 10:15:36 AM »
I don't believe it matters.  The chain and the cam are set and fixed for timing as you described, the gear just drives it all.
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Offline wlh1950

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Re: CB400 Valve timing
« Reply #2 on: October 16, 2008, 12:17:41 PM »
Thank you, I will continue with the reassembly.
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Offline ttr400

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Re: CB400 Valve timing
« Reply #3 on: October 16, 2008, 11:55:38 PM »
With 1 and 4 at TDC, position cam with cam lobes facing down on cyl #4.

Kevin
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Offline wlh1950

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Re: CB400 Valve timing
« Reply #4 on: October 17, 2008, 12:26:03 AM »
Then I did it wrong  :)
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Offline wlh1950

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Re: CB400 Valve timing
« Reply #5 on: October 17, 2008, 02:07:53 AM »
But quickly fixed.
« Last Edit: October 17, 2008, 08:21:55 AM by wlh1950 »
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