SuzukiSavage.com - valves closed

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valves closed (Read 129 times)

rocky YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 26	valves closed 02/05/08 at 16:55:37 When the rocker arms are up on the exhaust and intake is that when the valves are closed ?
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Demin Serious Thumper Offline We need more chlorine in the gene pool Posts: 2435 Warren,Ohio Gender:	Re: valves closed Reply #1 - 02/05/08 at 16:56:21 Yep.But check to make sure it's a TDC so ALL pressure is off of them.
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rocky YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 26	Re: valves closed Reply #2 - 02/05/08 at 16:57:43 Thank you
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Savage_Greg Serious Thumper Alliance Member Offline Don't go around your ass to reach your elbow... Posts: 7844 SW Washington State Gender:	Re: valves closed Reply #3 - 02/05/08 at 21:24:48 I didn't see anyone mention TDC on the compression stroke. Do you have a manual? Do you have a Photo CD?
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Savage_Rob Serious Thumper Alliance Member Offline Mechanically Inclined Amateur Posts: 6972 Texas (Dallas area) Gender:	Re: valves closed Reply #4 - 02/06/08 at 05:10:36 Absolutely. Not just TDC, but TDCC!
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skrapiron -FSO Serious Thumper Offline Instant Human.... Just add coffee.. Posts: 1456 Pittsburgh, Pa Gender:	Re: valves closed Reply #5 - 02/06/08 at 05:21:53 Yes.. What the other guys said! There are TWO top dead centers on the bike.... ( I learned that the hard way when I adjusted my valves the first time.) You have to make sure that you are at TDC on the compression stroke.
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Reelthing Serious Thumper Alliance Member Offline Fish or ride that is the question Posts: 5397 Houston,Tx Gender:	Re: valves closed Reply #6 - 02/06/08 at 06:12:02 just to continue the thought a little - being on the compression stroke is far more important than being exactly at TDC
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Savage_Greg Serious Thumper Alliance Member Offline Don't go around your ass to reach your elbow... Posts: 7844 SW Washington State Gender:	Re: valves closed Reply #7 - 02/06/08 at 06:39:13 Seems like we just went through all this a couple weeks ago...
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Savage_Rob Serious Thumper Alliance Member Offline Mechanically Inclined Amateur Posts: 6972 Texas (Dallas area) Gender:	Re: valves closed Reply #8 - 02/06/08 at 10:42:08 Personally, I like the wooden dowel in the sparkplug hole trick.
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Oldfeller--FSO Serious Thumper ModSquad Offline Hobby is now "concentrated neuropany" Posts: 12671 Fayetteville, NC Gender:	Re: valves closed Reply #9 - 02/07/08 at 03:23:50 Personally, I like the plastic soda straw in the spark plug hole trick better, less chance of breaking and leaving something inside the cylinder. Same idea though, you can watch the valves open & close and think you have TDC on compression properly ID'd but KNOWING it by watching the straw move out is always better.
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Savage_Greg

Serious Thumper
Alliance Member

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Don't go around your
ass to reach your
elbow...

Posts: 7844
SW Washington State
Gender: male

Re: valves closed
Reply #10 - 02/07/08 at 04:02:23

Savage_Rob wrote on 02/06/08 at 10:42:08:

Personally, I like the wooden dowel in the sparkplug hole trick.

Yep, but the stick or straw (or timing mark) doesn't know the difference in TDC Compression and TDC Exhaust. Therefore you still have to watch the valves move.

If you don't understand that the Intake valves will open and close before TDC Compression, you just might adjust the valves after the Exhaust valves close instead.

Of course, if you are really anal, you could always remove the headcover, set the camshaft position, reinstall the headcover, and then adjust the valves... Tongue

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