What could cause surging?
Thread Starter
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Intermediate
Joined: May 2016
Posts: 29
Likes: 0
From: PA
What could cause surging? Please see the videos.
2014 Sportster Iron. Happens only when it is hot.
Here are the links to the dropbox videos:
https://www.dropbox.com/s/by08muu9tg...e_000.mov?dl=0
https://www.dropbox.com/s/dsth2r8ka7zlj5k/1.mov?dl=0
Here are the links to the dropbox videos:
https://www.dropbox.com/s/by08muu9tg...e_000.mov?dl=0
https://www.dropbox.com/s/dsth2r8ka7zlj5k/1.mov?dl=0
Last edited by vamgnt; Jul 10, 2017 at 08:33 PM.
Road Captain
Joined: May 2014
Posts: 648
Likes: 35
From: San Diego
You sure or you just guessing? I had an intake leak an the head and my idle went high to around 1800. Caught it by pointing propane gas in that area and it coughed and stumbled.
Road Warrior
Joined: May 2011
Posts: 1,956
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From: florida
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Road Master
Joined: Dec 2016
Posts: 981
Likes: 182
From: Fairfax County, VA
Yes. It's lean if you have surging while cruising at partial throttle position/opening. Say around 1/8 to 1/4 turn at the grip. Possible the throttle position sensor is off but I would stick with some form of fuel enrichment first.
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Thread Starter
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Intermediate
Joined: May 2016
Posts: 29
Likes: 0
From: PA
Thank you everyone for your help. Here is an update:
Today was really hot. The surging got worse. The engine died a few times when I let off the throttle. There was some surging during acceleration too now. The check engine light came on and went off a couple of times. I barely got back home.
Today was really hot. The surging got worse. The engine died a few times when I let off the throttle. There was some surging during acceleration too now. The check engine light came on and went off a couple of times. I barely got back home.