Do110" s have automatic compression release
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Joined: Dec 2006
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From: Altoona, Pa.
Do110" s have automatic compression release
I have a 2010 screaming Eagle Ultra with the 110 engine. I was always under the impression that these engines came stock with the automatic compression release. I began looking at a parts catalog and exploded view of the engine and I don't seem to see any parts that would relate to a compression release. So do I or do I not have compression release on my bike
Club Member
Joined: Apr 2010
Posts: 1,760
Likes: 47
From: N. Texas
I would say you do and the reason you cant hear them is the air is run through the exhaust when you start the engine. My bike is a 96 upgraded to a 103 using my 96 heads with the compression release added on and they vent outside the engine so you hear them.
Road Master
Joined: Sep 2008
Posts: 1,217
Likes: 48
From: WI
I have a 2010 screaming Eagle Ultra with the 110 engine. I was always under the impression that these engines came stock with the automatic compression release. I began looking at a parts catalog and exploded view of the engine and I don't seem to see any parts that would relate to a compression release. So do I or do I not have compression release on my bike
Road Captain
Joined: Jul 2012
Posts: 633
Likes: 4
From: missouri
I just had a 255 cam put in my 103 Ultra. I asked about the compression releases. They told me they were installed at the factory but when the put the cam in they used the tuner to enable them or something like that.
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Road Warrior
Joined: Apr 2009
Posts: 1,258
Likes: 114
From: Jackson, Ohio
If you are talking about compression releases, 2011 and newer touring bikes but I have heard only on the ultra's. Doesn't make sense though so hopefully someone with a street glide or RGC can chime in.
Last edited by scj; Aug 24, 2012 at 08:33 AM.
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