Author Topic: VALVE CLEARANCES  (Read 3041 times)

Offline OLIVER1GEORGE

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VALVE CLEARANCES
« on: May 02, 2009, 08:39:19 PM »
I'm wanting to do my own valve clearances i have a Haynes book and it says they should all be 0.05 mm inlet and exhaust i start by lining up the T 1-4 with the static line mark and it tells you to start with cylinder one inlet and exhaust but which is cylinder one  I'm presuming as you are sat on the bike its the far left one is this right  when i line these marks up the valves have no movement whatsoever should they have play at all , just need some advice in how to do the job properly in what order
thanks chaps

Offline SteveD CB500K0

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Re: VALVE CLEARANCES
« Reply #1 on: May 02, 2009, 08:59:22 PM »
When you line up T1-4, either #1 (on the left as you sit on the bike) or #4 (on the right) will be at Top Dead Centre (TDC). If there is no play on the valves on #1, rotate the engine one whole turn to T1-4 and try again. This is because #1 and #4 go up and down together (as do #2 and #3), so when one of them is at TDC, the other is completing the exhaust stroke.
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1971 CB500K0

Offline OLIVER1GEORGE

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Re: VALVE CLEARANCES
« Reply #2 on: May 02, 2009, 09:50:52 PM »
thanks Steve i will give it a go so if i understand you right i will set t 14 to the static timing mark and  starting from cylinder 1 if there is no play in valves rotate t14 again  360 degrees until there is little play then adjust this goes for all cylinders is that right sorry if I'm going on i just want to do it right so i can make sure its not the valves making a mild noise rather than the cam chain

Offline SteveD CB500K0

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Re: VALVE CLEARANCES
« Reply #3 on: May 03, 2009, 09:04:20 AM »
Yes. At TDC both valves will be closed (so there should be a gap!).

2022 Tiger Sport 660
1971 CB500K0

 

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