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Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through August 10, 2008 » fouled plugs? « Previous Next »

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Ulyessesman
Posted on Monday, August 04, 2008 - 12:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

ok guys, look i know im not a rocket scientist or anything but how common is this: 2008 uly xb12x 26 miles , only rode from dealership to the house , sat for a week , first real chance to ride and upon crankin it it runs like crap , called the dealer and they said it sounds like the plugs are fouled, now heres my question , would i benifit more from letting the hukin farley guys tool on it and replace the plugs with the same kind that has already fouled or should i go ahead and invest in some irridium or split fires and replace them my self? , i've heard of this happening to other buellers but on bikes with a lot more miles than mine , i just want a few opinions, as my buell expierence is quickly becoming quite tainted, on another note i'm currently deployed to iraq and my father is the one who was going to break it in for me as my wife and i are planing a road trip on the uly and i dident want to have to worry about exceding the 1000 mile service by being out of state and bringing it to the dealership with 2500 or 3000 miles on it , not my first bike and i ride year round , any info will be greatly apperciated! thnx guys
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Ulywife
Posted on Monday, August 04, 2008 - 12:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

as my buell expierence is quickly becoming quite tainted

Don't let fouled plugs get you down. There are tons of threads on fouled plugs...what causes it, how to fix it, other options, etc. One thing I remember reading is when the Uly is cold started several time, but never really ridden for any length of time, it can cause the plugs to foul. If your Dad is used to a carb bike, that could be an issue as well. Also I think it's been mentioned to not blip the throttle when turning the bike off, as it will also foul the plugs. I'm sure if any of this is incorrect, someone will correct me!

I'm sure several others will chime in with their experiences. Until then, type in "fouled plugs" within the BB&D section under the search feature.

Gotta talk about mountain grass...Carlos is cutting this weekend, so I'm sure sometime in September it will be due again!
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Ulyessesman
Posted on Monday, August 04, 2008 - 08:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

muchos GRASSias seniorita, look forward to it!
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Hughlysses
Posted on Monday, August 04, 2008 - 08:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ulyessesman- the most common cause of fouled plugs is "blipping" the throttle on a just-cranked bike. This may have happened several times before you got the bike (especially if it was a demo unit) or you may not have known any better. When you first crank it, DON'T touch the throttle! Let it idle for a few minutes while you get your gear on, then ride it gently for the first couple of miles before you ride it hard.
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Svh
Posted on Monday, August 04, 2008 - 10:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I read somewhere on here that the 08's have a fouled plug "fixer" may want to try that. Someone here will know what i am talking about I think you cycled the key or something.

Thanks for serving we all appreciate what you do.
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Chas1969
Posted on Monday, August 04, 2008 - 10:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

NGK Iridiun plugs= "What is fouled plugs?"

Chas
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Froggy
Posted on Monday, August 04, 2008 - 10:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Cut and pasted from another post here:

SPARK PLUG CLEANING PROCEDURE

2008 XB and 1125R - has the ability to clear residual fuel from the combustion chamber if a flooded engine or fouled spark plugs are suspected. This is achieved by opening the throttle to wide open, setting the Run/Stop switch to Run then, turning the ignition switch ON. This will fire the spark plugs for approximately 4 seconds, burning any fuel left over in the combustion chamber. It may be necessary to repeat this procedure several times to allow a severely flooded engine to start. NOTE: Motorcycle should be in Neutral.
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Svh
Posted on Monday, August 04, 2008 - 10:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Froggy I knew someone could find it faster than I would.
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Froggy
Posted on Monday, August 04, 2008 - 10:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It is quite common for a new Buell to have fouled plugs, mostly because dealers start the bike up for customers and rev the engine for a few seconds, then shut it off. This doesn't give the engine a chance to warm up. The engine runs richer during warm-up, and shutting down too soon leaves unburnt fuel on the plugs, which is known as wet fouling.
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08uly
Posted on Monday, August 04, 2008 - 03:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Not sure where this came from.

I think it's been confused along the way unless someone can cite it to some Buell document.

Why do we think it cleans the spark plugs? Why is it the exact same procedure for cycling the Exhaust Valve Actuator (EVA)? (Citation bellow)

The new plugs for the 2008 models (10R12X) were designed to be better at keeping themselves cleaner (new anti fowling center electrode insulator design) but I'm skeptical that this procedure does anything other than cycle the EVA.

NOTE: If you do this DO NOT START THE ENGINE IN THIS MODE.


quote:

SPARK PLUG CLEANING PROCEDURE

2008 XB and 1125R - has the ability to clear residual fuel from the combustion chamber if a flooded engine or fouled spark plugs are suspected. This is achieved by opening the throttle to wide open, setting the Run/Stop switch to Run then, turning the ignition switch ON. This will fire the spark plugs for approximately 4 seconds, burning any fuel left over in the combustion chamber. It may be necessary to repeat this procedure several times to allow a severely flooded engine to start. NOTE: Motorcycle should be in Neutral.





quote:

2008 XB Exhaust Actuator (reset)

* DO NOT start the vehicle in this mode.
Cycle the actuator to verify cable and valve operation:
a. Hold the throttle wide open.
b. Turn the engine cut-off switch to RUN.
c. Turn the ignition/light switch ON.
d. Watch the actuator cycle close/open/close.

'08 XB service manual (99490-08Y) page 1-39




---
08Uly
Uly Data Page
}

(Message edited by 08uly on August 04, 2008)
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Darthane
Posted on Monday, August 04, 2008 - 04:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's possible that that procedure simply initiates a 'self-check' routine, which has the side benefits of allowing a user to visually check actuator movement and cleans residual fuel from the chamber by testing the firing loops. -=shrugs=-
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08uly
Posted on Monday, August 04, 2008 - 04:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My skepticism partly lays in that, if there is some fuel to burn in the chamber and doing this procedure is going to ignite that fuel using the spark plugs.

What happens next?

BANG!

No?

The cylinders couldn't be ready to fire?

When would this burn-off occur?

---
08Uly


Uly Data Page
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Ulyessesman
Posted on Tuesday, August 05, 2008 - 02:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thanx yall , ill pass all this on t my pops , like i said above , im in iraq right noe but ill be home in sept and one way or another well get it right! ty
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