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A sneeze

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Old Apr 8, 2017 | 07:03 PM
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Default A sneeze

Hi everyone, I am a new member and have a ton of questions regarding my old evos. So I have two 98's an Electra ultra classic injector I bought from the second owner that has had it since 99. 47k on the clock. A mild stage one kit, screaming eagle map, k&n high flow under stock a/c cover and some type of pipes, not sure make but not stock. Was well taken care of, always serviced. And then the softail custom. Bought it last april, put a new seat on it and rode the crap out of it. It is an older build and it seems like it sat for a long time, only 22k on the clock when I bought it. It's got a bit of older arlen ness stuff on it. Not sure what all was done to it but, S&s shorty E, older Vance&Hines double barrels, and something done inside. Either mild high compression pistols or shaved heads. She won't run on anything but high test, and boy does she run. Since she sat for so long, inside, no rust very clean, some of the original systems needed replaced this winter, new lines,new cables, new brakes, etc., etc. So all bit back together and took her out for a ride, nice. The issue I'm having is every once in a while the carb sneezes. This does not happen often, once every 4 or 5 rides and usually when I am climbing a hill. I know this indicates a lean condition, but it doesn't happen often at all.
 
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Old Apr 8, 2017 | 08:58 PM
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Welcome to the forum.
Paragraphs are your friend!!!!!!!!!!!
What do the plugs look like??
 
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Old Apr 8, 2017 | 09:46 PM
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Sorry so long winded. Rear plug looks great. Front plug has some carbon buildup. Just changed plugs when I did the full service.
 
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Old Apr 8, 2017 | 09:53 PM
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Originally Posted by Evoken
Sorry so long winded. Rear plug looks great. Front plug has some carbon buildup. Just changed plugs when I did the full service.
Man you can be as long winded as you like I just ask that you use paragraphs to separate things.
Makes it easier for my old brain to figure out what's going on.

As to your plugs you are saying your front plug is darker than your rear plug???
That's backwards to what normally happens as the rear jug doesn't get as much wind as the front jug so the rear plug is usually darker than the front.

Have you checked your intake seals for leaks.
 
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Old Apr 8, 2017 | 10:05 PM
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It is backwards from what I thought as well. And yes front plug is darker with some carbon buildup. Back plug looks perfect.
I do need to check the intake just to make sure it's not leaking. Just seems strange that it only happens once in a while.
On another note, I am glad to see that I'm not the only one that names their scoot. I call the softail Jenevive, she is my saucy little redhead.
 
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Old Apr 8, 2017 | 10:06 PM
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A compression test of both cylinders is easy to do and might provide some insight although I don't think that is what is wrong. It is just an easy test to perform.

Check for leaks on the intake.
 
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Old Apr 8, 2017 | 10:13 PM
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Originally Posted by Evoken
It is backwards from what I thought as well. And yes front plug is darker with some carbon buildup. Back plug looks perfect.
I do need to check the intake just to make sure it's not leaking. Just seems strange that it only happens once in a while.
On another note, I am glad to see that I'm not the only one that names their scoot. I call the softail Jenevive, she is my saucy little redhead.
My son is hell on wheels for naming our vehicles.

'97 GMC pickup : Buddy
'05 Z 71 4x4 pickup : Ghost
'02 Honda Rebel : Rita
'94 FXSTC : Katy
You've already met Tina
'06 Yamaha TTR 90 : Hanna --- Stolen
 
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Old Apr 8, 2017 | 10:20 PM
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I will check the intake first. A can of carb clean is cheap and on my shelf. I don't have a psi gauge for cylinders.
 
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Old Apr 8, 2017 | 10:22 PM
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Jenny is the only one that has a name. I'm just really fond of her. And she is coming along nicely, piece by piece.
 
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Old Apr 9, 2017 | 12:01 PM
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It could be as simple as a misaligned intake manifold.
 
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