103" big bore without compression release?

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Feb 10, 2011 | 10:35 AM

#41

iclick

Extreme HDF Member

Joined: Sep 2005

Posts: 11,615

Likes: 50

From: Baton Rouge, LA

Quote:

Originally Posted by rare100thHD

Automatic's are very nice benefit, whichever way you decide, trust what most are saying here. Do either the ACR's or MCR's. I have the MCR's and never needed to use both. Only the rear cylinder, do I ever mash!

My local HD shop recommends installing just one CR on the rear cylinder. Makes sense and it's cheaper.

Feb 10, 2011 | 11:14 AM

#42

Avalanche_Mutt

Tourer

Joined: Dec 2009

Posts: 331

Likes: 1

From: SE-WI

My Limited came with ACR.

Feb 10, 2011 | 12:48 PM

#43

CaboWabo5150

Advanced

Joined: Sep 2008

Posts: 52

Likes: 0

From: Northern Michigan

No compression releases here.. YET... It's great before she's hot.. If I stop for gas I have let it sit for a few extra minutes to cool off a little or else the starter will skip about 50% of the time..

It's in the shop now getting new T-Man heads WITH manual compression releases..

Nov 30, 2011 | 09:48 PM

#44

DeneFXDWG

Road Warrior

Joined: Mar 2010

Posts: 1,505

Likes: 56

From: Vancouver Island, British Columbia

Which brand MCR??

Is there more than one band of MCR? Is one better than the other because I read in one of the previous posts that sometimes the manual ones can stick open. Is it a simple tap procedure for MCR's if I have the heads off anyway?

Dec 1, 2011 | 03:15 AM

#45

Spartacus55

Cruiser

Joined: Mar 2009

Posts: 173

Likes: 0

From: sayreville nj

Acr's

Have 07 rk 103 255 cams engine compression is low enough that i have had no problems starting bike cold or warm. Also have tru duals se race tuner and hd oil cooler and bike has been dyno tuned new numbers are at 88hp and 104 tq hope this helped. ps you can use the money you save on acr's for more shiny stuff.

Dec 1, 2011 | 03:39 AM

#46

Then Came Bronson

Grand HDF Member

Joined: Oct 2009

Posts: 3,919

Likes: 3,721

From: Hill Country, TX

My 103" has 10.5:1 compression, TW-6 cams, SE Heads, and about 105 HP.

Manual compression releases were a no-brainer for me. Minimal cost, maximum benefit. Looks wise, you wouldn't even know they were there, unless you're looking for them.

I'm so used to using them now, it's just an automatic thing for me to reach down and "click, click" the releases. Piece of cake.

Dec 1, 2011 | 03:39 AM

#47

6 gun

Seasoned HDF Member

Joined: Mar 2008

Posts: 9,384

Likes: 1,776

From: Central Texas

No compression release and no problems,
but I do have the heavy duty HD starter.

Dec 1, 2011 | 09:28 AM

#48

Inspector 12

Road Master

Joined: Nov 2009

Posts: 1,218

Likes: 0

From: Yakima WA

Quote:

Originally Posted by DeneFXDWG

I have had the MCR "stick" a couple of times on my bagger. I keep a spare one in the tool kit, easy enough to change out if a problem occurs (one of the reasons I prefer MCR to ACR, I have MCR on the bagger and ACR on the SE 120R dyna). Mine stuck for different reasons, first a piece of carbon got on the seat so swapping the release was the only fix until I could brush the carbon off the seat. The second time was just due to "dryness" on the stem, pulled them out to service and lubed with some Kroil. Now I just pull them out at the start of the riding season and service them. No problems at all last year.

As to tapping, a little more involved than that. HD sells a fixture and some bits that simplify installing the MCR, might be easiest to make a deal to have them do it unless you are or have a friend who is a skilled machinist.