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Manuel compression to automatic valves

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Old Mar 19, 2018 | 10:38 AM
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Default Manuel compression to automatic valves
Hello, I have a 2012 super glide with a 120R. I have the manual compression release valves already install. My question is will the automatic release valves go in the same holes the Manuel one are in? I want to replace them because it can be hard to start at times. Thank you for any help or advise.
 
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Old Mar 19, 2018 | 11:04 AM
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HD ACRs sit in the center of the heads not where the your manuals are iver by the plugs.

there may be aftermarket ACR that will sot there.
 
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Old Mar 19, 2018 | 12:39 PM
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Dam.....so I will have to buy heads if I want to do this.
 
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Old Mar 19, 2018 | 01:23 PM
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Originally Posted by Macs338
Dam.....so I will have to buy heads if I want to do this.
Not 100% sure on that. Depends upon your 120r. Ask in the engine subforom.
 
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Old Mar 19, 2018 | 01:35 PM
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Seems like something the ACR manufacturer would be well equipped to answer...
 
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Old Mar 19, 2018 | 04:11 PM
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Default Compression Releases
I have auto releases on my road glide and manual one on my Dyns. I see no reason to go from manuals to automatic. All you have to do is get used to opening them up when you shut down the bike, otherwise they get very hot at the end of a gas stop.
If you choose to install the autos, you have to buy and install the wiring harness as well have the ECM programed.
Also, with a high compression motor, like a 120R, you would think that if they were needed, they would come installed...Does the motor turn over slow on startup ?
 
Last edited by dyna rider; Mar 19, 2018 at 04:13 PM.
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Old Mar 19, 2018 | 05:34 PM
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After riding if I open the valves , if it doesn't start by the second try it ends up killing the battery. I have never tried to open them as soon as I stopped just right before I start it.
 
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Old Mar 20, 2018 | 08:59 AM
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What type and CCA battery are you using? You may want to upgrade CCA’s and maybe go with a lithium battery, they seem to hold a charge better.
 
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Old Mar 20, 2018 | 09:12 AM
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Was this a crate 120R, or built from your original motor?
( crate motors come with ACR holes drilled & plugged)
 
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Old Mar 20, 2018 | 11:03 AM
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Originally Posted by rigidthumper
Was this a crate 120R, or built from your original motor?
( crate motors come with ACR holes drilled & plugged)
it was a create motor. It has the Manuel valves in it now.
 
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