08 idle speed

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Jan 8, 2008 | 09:14 AM

jimmers1817

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From: NJ

08 idle speed

The 1000 mile service on my 08 Heritage calls for an idle speed check. The service manual states the idle speed can only be set using a computer program available only to HD dealers.
The idle sounds fine to me now but I'm wondering if it will increase if I start running synthetic oil in it. Any thoughts?

Jan 8, 2008 | 09:22 AM

Mike NY

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Joined: Jan 2006

Posts: 1,210

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From: Westchester, NY

RE: 08 idle speed

The idle speed on the EFI bikes is set by the differentenginetemperature ranges.
I have the HD SERT and there is a setting to change the Idle RPM at different Temperature ranges but I wouldn't mess with that.

Mike
NY

Jan 8, 2008 | 08:08 PM

rsavage

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Joined: Sep 2007

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From: Alden, NY

RE: 08 idle speed

I went to the HD synthetic at my 1000 mi check on my 08 and had no change in idle speed - just a smoother running engine feel.

Jan 8, 2008 | 09:43 PM

jimmers1817

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From: NJ

RE: 08 idle speed

Thanks. prolly sounded like a stupid question but since synthetic reduces friction it just made sense that it might also increase the engine idle. But I guess the efi determines the speed independently.

Jan 8, 2008 | 09:47 PM

tk353

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From: Leander Texas

RE: 08 idle speed

the idle is controlled by the ECM so it will not change when running synthetic oil. I use Amsol and it made the bike smoother, quieter, cooler and seems faster.