Running Issue?
Thread Starter
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Intermediate
Joined: Jul 2009
Posts: 41
Likes: 0
From: Minneapolis, MN
Running Issue?
I'm new to Harleys. I just got an '01 EGC with EFI. I don't know if it is running well or not. It does have aftermarket exhaust and air filter. I know it doesn't have a power commander or anything like that. I don't know if it has the HD download. Here is what I am experiencing:
-MPG tops out at 38
-It smells like it is running rich (maybe that is normal for HD)
-When engine gets hot, lately it has been idlling at about 600-800 RPMs (feels like it is going to die)
-Lots of popping and backfiring when decelerating
-Every once in awhile it sounds like a cylinder doesn't fire (just sounds like a puff of air coming from under the tank)
Any thoughts, suggestions would be greatly appreciated.
Thanks!
-MPG tops out at 38
-It smells like it is running rich (maybe that is normal for HD)
-When engine gets hot, lately it has been idlling at about 600-800 RPMs (feels like it is going to die)
-Lots of popping and backfiring when decelerating
-Every once in awhile it sounds like a cylinder doesn't fire (just sounds like a puff of air coming from under the tank)
Any thoughts, suggestions would be greatly appreciated.
Thanks!
Outstanding HDF Member
Joined: Nov 2006
Posts: 2,115
Likes: 1
From: CA
I'm new to Harleys. I just got an '01 EGC with EFI. I don't know if it is running well or not. It does have aftermarket exhaust and air filter. I know it doesn't have a power commander or anything like that. I don't know if it has the HD download. Here is what I am experiencing:
-MPG tops out at 38 Better than mine.
-It smells like it is running rich (maybe that is normal for HD)
-When engine gets hot, lately it has been idlling at about 600-800 RPMs (feels like it is going to die)
-Lots of popping and backfiring when deceleratingMy RK does that as well as many other models
-Every once in awhile it sounds like a cylinder doesn't fire (just sounds like a puff of air coming from under the tank)Is it when you are idling and the engine is hot?
Any thoughts, suggestions would be greatly appreciated.
Thanks!
-MPG tops out at 38 Better than mine.
-It smells like it is running rich (maybe that is normal for HD)
-When engine gets hot, lately it has been idlling at about 600-800 RPMs (feels like it is going to die)
-Lots of popping and backfiring when deceleratingMy RK does that as well as many other models
-Every once in awhile it sounds like a cylinder doesn't fire (just sounds like a puff of air coming from under the tank)Is it when you are idling and the engine is hot?
Any thoughts, suggestions would be greatly appreciated.
Thanks!
Thread Starter
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Intermediate
Joined: Jul 2009
Posts: 41
Likes: 0
From: Minneapolis, MN
I think its doing it when the engine is coming from idle to a load
Sometimes it will do this when I start it too.
Outstanding HDF Member
Joined: Apr 2006
Posts: 2,537
Likes: 21
MM systems are notorious for eating ISC (Idle Speed Controllers), ET (Engine Temperature Sensor), and improperly set idle (Hot and Cold).....
FWIW, you should get the bike to a shop that has the ability to hook up to a computer and evaluate the data stream for anomolies....
FWIW, you should get the bike to a shop that has the ability to hook up to a computer and evaluate the data stream for anomolies....
Thread Starter
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Intermediate
Joined: Jul 2009
Posts: 41
Likes: 0
From: Minneapolis, MN
Don't ask me how, but I got the bike to do this again and it actually did it a few times. It felt like my old bike did when it ran out of gas and I had to switch to the reserve tank. It only stuttered for a few seconds, then went back to normal.
Thread Starter
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Intermediate
Joined: Jul 2009
Posts: 41
Likes: 0
From: Minneapolis, MN
I guess what I'm trying to figure out is if I should try installing a fuel management system (Power Commander, Fuelpak, etc) before taking it into the shop to look for some problems...
She finally did die on my today at a stoplight.
She finally did die on my today at a stoplight.
Road Captain
Joined: Apr 2007
Posts: 571
Likes: 3
From: Loudoun County, Virginia
I had that missing and dying issue and when I checked my plugs one was out of whack. Got a new plug set the gap and good to go. Try checking the plugs and are you running Hi octane gas?
Buzz
Buzz
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Thread Starter
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Intermediate
Joined: Jul 2009
Posts: 41
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From: Minneapolis, MN
Brand new plugs and 91-93 octane (non oxygenated if I can help it.)
This bike only has 8000 miles on it.
This bike only has 8000 miles on it.
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Thread Starter
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Intermediate
Joined: Jul 2009
Posts: 41
Likes: 0
From: Minneapolis, MN
Okay here's whats going on now: 2 days ago I adjusted spark plug gap from .040 to .043. Then I adjusted the hot engine idle speed and pulled the 5 and 15 amp fuses on the right side.
After doing that she ran beautifully. No backfire, no dying, no misfire.
Fast-forward to today. Started it up and within 5 minutes of idling in the driveway it died. Its idling at about 600-700rpms cold. (I don't know if it's actually misfiring maybe someone could educate me on how to tell) But it was stuttering again today and a little backfire. Not as much as before though. What gives?
On a side note, I washed the bike yesterday. That's the only thing that happened between the two "test drives"
After doing that she ran beautifully. No backfire, no dying, no misfire.
Fast-forward to today. Started it up and within 5 minutes of idling in the driveway it died. Its idling at about 600-700rpms cold. (I don't know if it's actually misfiring maybe someone could educate me on how to tell) But it was stuttering again today and a little backfire. Not as much as before though. What gives?
On a side note, I washed the bike yesterday. That's the only thing that happened between the two "test drives"