Carb vacuum/voes?
Stellar HDF Member
Joined: Jul 2009
Posts: 2,825
Likes: 2,140
From: Hope Mills NC, bye CA!!
You dont adjust the vacuum... you adjust the voes to react at different levels of vacuum.
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
The harley VOES is adjustable. You need to dig the silicone out of the one side and you will find a screw in there by turning it you can raise or lower the pressure that it switches. Once you have it where you want it you need to refill the area with silicone.
John
John
Road Warrior
Joined: Jun 2009
Posts: 1,687
Likes: 9
From: SoCal & West TN
I never knew about that.
Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
Likes: 11
From: Northern Ontario
You shouldn't have to adjust the timing unless it wasn't timed right to start with or the same with the carb just connect up the voes and you should be ready to ride. You just need to setup the carb if the air/fuel isn't adjusted right according to the pilot jet. If you have a 45 pilot and 175 or bigger for the main you should be good other than air/fuel which around 2 turns out should be good start.
Last edited by RidemyEVO; Jun 18, 2012 at 12:55 AM.
Road Warrior
Joined: Jun 2009
Posts: 1,687
Likes: 9
From: SoCal & West TN
I never took it apart.
I don't claim to know everything. If I don't know, I will not act like I do.
And there is always more to learn.
I don't claim to know everything. If I don't know, I will not act like I do.
And there is always more to learn.
Last edited by Ultra89Rider; Jun 18, 2012 at 01:21 AM.
Road Captain
Joined: Jun 2012
Posts: 533
Likes: 2
From: Virginia
Set the ignition to the factory settings, install the VOES - and you should be in the ballpark.
If you've got a high compression engine and a larger cam - you may need to retard the timing slightly from factory settings.
VOES adjustments are only required if you experience pinging on low load/part throttle to WOT transition.
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Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
Likes: 11
From: Northern Ontario
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
To properly tune an engine you set the timing first, then get the carb close, tune the exhaust if possible then play with the carb and maybe a few degrees on the timing. Whenever you change one it can change the others, especially on a built engine.
John
John