883 idle speed
Cruiser
Joined: Nov 2009
Posts: 157
Likes: 0
From: Amarillo, TX
The ECM takes care of the idle on 07 and newer Sporty's. I installed a Thunder MAx and set the warm idle to 890 RPM. Can just every now and then get the famous Harley lope. Seems like about 750 RPM would sound very nice. HD recomments about what bwana1 said - and don't know why they would want it to idle so fast??? Any answers to that?
Last edited by Snarvol; Aug 11, 2010 at 07:36 PM. Reason: Not finished yet.....
Ultimate HDF Member
Joined: Mar 2008
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From: Landrum, SC , elevation 986'
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Cruiser
Joined: Nov 2009
Posts: 157
Likes: 0
From: Amarillo, TX
So, is this something we Gotta put up with? Or can the oil pump be modified or replaced with a more linear unit. Kinda seems like a design screwup. If someone could come up with a good fix I'd bet they could make some bucks!!
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Stellar HDF Member
Joined: Aug 2009
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You'll have to put up with it. It's because, in the Evo engines, the oil pump is gear driven. Thus, it's capacity to build pressure and pump oil is directly related to the gear ratio between the engine and the pump drive. As xFreebirdx said, below the factory recommended 950rpm, you will NOT get oil to the top end. Any operation below that speed and you are risking major engine damage.
Road Captain
Joined: Jun 2008
Posts: 735
Likes: 228
From: Lagoa - VNF
interesting, as I run my bikes @ 800 RPM idle (minimum allowed by SEST) and the oil light stays off, also zero problems so far (31000km and 12000km)
cheers
cheers