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Carb vs Efi

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Old Mar 6, 2009 | 06:45 PM
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harley1969's Avatar
harley1969
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Default Carb vs Efi

Hey guys just want to know if theres anyone out there that thinks the same way i do about fuel injected bikes. Ive always liked the idle alot better on carb bikes. Fuel injected bikes all seem to idle way to fast. Dont know what it is but the carb bikes seem to sound more like the distinct sound of a harley. Anyone out there agree? Thats why i went with a carbed harley. Always loved the sound and idle alot better. The only thing i liked about FI bikes is that you dont have to warm them up before you take off..lol
 
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Old Mar 6, 2009 | 06:52 PM
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I have one of each. Ain't nothing wrong with a carb, but I certainly wouldn't run out shopping for another bike with a carb on my "have to have" list.
 
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Old Mar 6, 2009 | 07:24 PM
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One problem I have with a carb'd bike is winter riding. Riding in the 20-30 degree range (won't even start in the teens) after the bike is warmed up I sometimes stall out on the highway. I think this is because the carb freezes. I'll coast to the side, wait about 30 seconds to a minute and she's good to go again. Does an FI bike have the same problems?

Other than that, I can't think of a reason to have one over the other. I'll have to listen to the FI bikes a bit more closely.
 
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Old Mar 6, 2009 | 07:46 PM
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nowbmw
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I ride way to much in cold weather living in Ohio not to have an EFI Bike.

Push button and go, only way for me

Brent
 
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Old Mar 6, 2009 | 08:10 PM
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I agree there is a difference and a carb sounds more earthy, unfortunately I'm old and practical now. EFI is the only way to go for me on something ridden heavy.
 
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Old Mar 6, 2009 | 08:13 PM
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From: Woodstock, Ont , Can
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Originally Posted by kkinderen
One problem I have with a carb'd bike is winter riding. Riding in the 20-30 degree range (won't even start in the teens) after the bike is warmed up I sometimes stall out on the highway. I think this is because the carb freezes. I'll coast to the side, wait about 30 seconds to a minute and she's good to go again. Does an FI bike have the same problems?

Other than that, I can't think of a reason to have one over the other. I'll have to listen to the FI bikes a bit more closely.
Nope. Carbs have a venturi in them that actually drops pressure in the carb to suck fuel. While doing so, it also drops air temps and in the right humidity range will cause ice to form in the throat. The base of the carb on the outside will likely look frosty too. This in turn blocks areas where fuel needs to get in and the engine won't run well. Usually the idle craps out first. Ride it long and hard enough in those conditions it will go lean on you and even quit. Like you say, park it for a few and heat from the engine will melt the ice and you can blast off again. EFI don't use a venturi and fuel is injected, not sucked.
Ron
 
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Old Mar 6, 2009 | 08:16 PM
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CV carb on my 2002 Sporty and an S&S Super E on my 2006 Springer. Next bike will be carb also. (It won't be a new bike thats for sure!)
 
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Old Mar 6, 2009 | 08:23 PM
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From: Connecticut
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Carbs are good, but for me EFI works. Guys I ride with all have carbed bikes and its always start and warm up before we go. EFI makes more power with less fuel.
 
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Old Mar 6, 2009 | 08:44 PM
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My EFI'd 05' Train thumps gurgles and idles way down low. Maybe the cams i have or the tuner? I like it. It sounds perfect.

I wouldnt wanna dillick around with a carb when I have experienced the joy and simplicity of EFI.
 
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Old Mar 6, 2009 | 10:43 PM
  #10  
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I've been an owner/rider for over 40 years. I used to love to tune my carb bikes and tweak them "just right." When I discovered the virtues of EFI I never looked back. They start so reliably, maintain proper A/F mixture throughout the density alitude envelope and the high idle thing you talk of is easily lowered with a H-D remap or an aftermarket fuel management system. I could not imagine going back to cleaning the carbs, re-jetting, dialing it in for high alitude riding and back to valley riding. No thanks, no matter the perceived sound.
 
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