Question for you tech guys
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Stage IV
Joined: Mar 2011
Posts: 4
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Question for you tech guys
I have a big problem. I live to close to work. My commute is a whole 3 miles. Taking the long way is 5.
The bike will crank and idle fine to warm up. When slowing to a stop the bike will stall. It will start with throttle, but no idle.
It's been doing this for a few days. I pulled off my (Screamin Eagle) air cleaner,and found water in the intake from the breather tubes.
The first question is, what is a descreet breather system that will not place water into the intake system?
The second is not really a question-but I plan on replacing all the sensors in the intake system. I'm open to more suggestions though.
2003 Roadking Police
95 CI
510 Andrews Cams
Gear Drive Cams
First Gen Thunder Max ECM
Thanks in advance.
Frank
The bike will crank and idle fine to warm up. When slowing to a stop the bike will stall. It will start with throttle, but no idle.
It's been doing this for a few days. I pulled off my (Screamin Eagle) air cleaner,and found water in the intake from the breather tubes.
The first question is, what is a descreet breather system that will not place water into the intake system?
The second is not really a question-but I plan on replacing all the sensors in the intake system. I'm open to more suggestions though.
2003 Roadking Police
95 CI
510 Andrews Cams
Gear Drive Cams
First Gen Thunder Max ECM
Thanks in advance.
Frank
Outstanding HDF Member
Joined: Jan 2010
Posts: 2,916
Likes: 31
From: earth
I see you have a cam and probabaly a slightly rich tune, You may be understimating the time it takes your bike to "warm-up". For the stalling issue, many folks say the IAC may need cleaned or look for a faulty head temp sensor, ther are some other likely culprits but those are the first ones to check. No breather system should be dumping water in the intake, Have you been riding in the rain, or washed it lately.
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
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From: SoCal
Every breather that is routed to the intake is putting condensation into the intake. I have routed mine to a clear plastic baby bottle and I am still very surprised at the amount of water vapor that is deposited on each warm up before evaporation.
Sometimes an engine with a fresh air kit will stall at early warm up if the FI or carb is not metering enough fuel at that time when it needs it. A sensor may be giving false info to the ecm. This is assuming that everything else is sound.
Sometimes an engine with a fresh air kit will stall at early warm up if the FI or carb is not metering enough fuel at that time when it needs it. A sensor may be giving false info to the ecm. This is assuming that everything else is sound.
Account Retired
Joined: Oct 2009
Posts: 3,245
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From: Here
IMO I don't think you have a problem except the distance and time you are riding. If I were you, I would change my oil, clean the breather element and take the bike for a long ride. At least 30 min. You have a Car and bike killer deal there living so close to work. You don't run either one enough to burn the moisture out of your engine. I would start leaving home earlier and take longer to get to work. Same coming home.
I would agree..you need to get things up to operating temps..
Road Master
Joined: Jan 2008
Posts: 874
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From: Southern Arizona
You should also check your oil for a gassy smell. If you're not getting the engine up to it's operating temperature, you could also be building up gas in the oil. My son used to have a problem with that on his ride to school which was also only about three miles from the house.
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Stage IV
Joined: Mar 2011
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Thanks for all the input. To answer some of the questions.
The bike has not been in the rain, of washed in forever.
The bike definately has a rich burn condition-I have not figured the right map for my ecm yet. I've noticed that the gas mileage has dropped to 18 mpg, from 25ish.
I'd like to find a different breather set-up, because there is alot of condensation in the engine. Yes I change the oil often because of this.
I agree I need to ride much further than I do. It's amazing how a young kid voids ride time.
The bike has not been in the rain, of washed in forever.
The bike definately has a rich burn condition-I have not figured the right map for my ecm yet. I've noticed that the gas mileage has dropped to 18 mpg, from 25ish.
I'd like to find a different breather set-up, because there is alot of condensation in the engine. Yes I change the oil often because of this.
I agree I need to ride much further than I do. It's amazing how a young kid voids ride time.
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Joined: Apr 2006
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From: Billings,Mt.
Cold weather is is only going to add to the problem.
The engine has to get hot enough to burn/evaporate the water and riding the bike for a few minutes every day is not going to do this.
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Joined: Jan 2010
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From: earth
That 18 MPG is horrible and suggests you are running way too rich, that just adds to the warm up problem you are having on your short commute. You may have a catch 22 on your hands , in that you are tuned extreemly rich to start with, keeping the engine too cool to transition out of warm up enrichment mode, just a thought, I could be totally off. One thing for sure, you do have a unique condensation issue because of the extreem cold running condition. You might try tuning to the "EPA" lean side to help with the short rides, but you'll pick up a lot of heat when you decide to go on a long ride. If you only ride it to work, and short distances or less than 30 min at a time, tune it lean and forget about it. You can also work up a slightly rich map to load before you go on a long ride, or use an alternate method to manage heat and keep the lean tune full time. And there are probably a lot of other good suggestions for your situation.