Help with XCT Maybe Running Rich - Victory Forums - Victory Motorcycle Forum
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post #1 of 14 (permalink) Old 02-05-2017, 02:34 PM Thread Starter
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Default Help with XCT Maybe Running Rich

I have a 2012 XCT to which I have done the following mods:
Lloydz adjustable timing wheel set to +5degrees per Kevinx
Lloydz air filter
Power Commander V (O2 sensors electrically disconnected)
Dynotuned by KevinX

All of the above work was done in March, 2016.

The bike ran well after the above work until the last month. It has begun exhibiting the following problems:
1) Backfiring, especially when letting off the throttle suddenly. Sometimes even when letting off the throttle for shifting
2) Odor of exhaust fumes when sitting on bike and it is stationary
3) Fairly high level of soot inside the exhaust tips and around the connection of the exhaust tips to the pipes
3) Maybe a bit poorer fuel mileage but not sure about this

I have done the following things:
A) Checked for exhaust leaks where header pipes enter cylinder ports using a long fireplace lighter. With bike running and moving the lit lighter around, the flame does not flicker or get
blown about.
B) No noticeable black smoke out of pipes even when revving the engine
C) Removed, inspected, and replaced the spark plugs. Pictures are below and I would appreciate your opinions on these. Left two pictures are the front plug while the other three
pictures are the rear plug. I think they look very slightly rich but not that bad. Old plugs had too large a gap - greater than 0.04" (1 mm). I adjusted the gap on the new plugs
to spec of 0.032-0.036" (0.8 - 0.9 mm).
D) Examined PCV when bike is started and running: Green "power" light is on. Red "Status" light flashes a few times when bike is turned on and then goes out. I suspect this is the normal
operation but can anyone confirm this?

Any ideas of what other sources of problems I should look for? Any help you can provide would be greatly appreciated.

G'day,

Vinish
Attached Images
File Type: jpg Front Plug 1 - Small.jpg (43.5 KB, 70 views)
File Type: jpg Rear Plug 1 - Small.jpg (39.7 KB, 71 views)
File Type: jpg Rear Plug 4 - Small.jpg (36.3 KB, 70 views)
File Type: jpg Rear Plug 3 - Small.jpg (37.1 KB, 69 views)
File Type: jpg Front Plug 2 - Small.jpg (56.7 KB, 69 views)

G'day,

Vinish

Our patriotic stable:

Red 2012 XCT (wife's bike in NC)
Red 2012 XCT (my bike for NC)
White with custom flames 2012 XCT (wife's bike in FL)
Blue custom fire on a black 2012 XCT (my bike in FL)

2006 HD Softail Heritage (my bike when I was in MI - sold in Oct, 2017 after putting 45,000 miles and 20 states and one province on it - My first big bike and most of us will always remember our first with fond memories)
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post #2 of 14 (permalink) Old 02-05-2017, 03:07 PM
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How difficult would it be for you to run it back to Kevin's shop? Have you called him yet or did you want to see what we said first before calling?

The fume issue is fairly well known if it's the same one most people have had and that's one of the vent lines gets occluded by getting caught between something under the left thigh so the fumes then come out the gas cap.

It wouldn't hurt to verify the fuel line is snapped in correctly at both ends if you have any question.

Do you ever run something like Seafoam in the gas to clean out the injectors? Maybe they are getting dirty and not atomizing the fuel like they or one of them should.
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post #3 of 14 (permalink) Old 02-05-2017, 04:59 PM
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usly black suit is a sign of getting on it to much. (never enough)
popping or back fire is cause victory is cheap with there ecm
For sure get a hold of Kevinx I know he make it right for you

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Mpls, MN.

Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks
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post #4 of 14 (permalink) Old 02-05-2017, 07:03 PM
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Do you smell heavy exhaust all the time or just when it's cold?
Any other symptoms, does it idle well, no hiccups when driving or acceleration ?

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Ness Intake
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And a nagging itch to add more

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post #5 of 14 (permalink) Old 02-05-2017, 07:29 PM
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Bullypack's comment made me think of something else it might be due to the ECU controlling the AFR. It's possible the battery is on its way out. Victory's and the XC and Vison line's especially, probably due to more things being powered by the battery, are especially susceptible to battery issues or even a loose connection.

Checking the battery connections won't cost a thing and getting the battery checked at an auto parts store is free or at least it used to be. Not sure about anything these days.
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post #6 of 14 (permalink) Old 02-05-2017, 10:19 PM Thread Starter
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Thank you all for the ideas. I will get the the battery load tested and verify that the battery connections are tight. I wanted to get your opinions and try the simpler stuff before talking to KevinX about it. I'm Florida so it is never really cold when I'm riding. Coldest is maybe 50 adn warmest is 95. The problems with exhaust seem to NOT be correlated with outdoor temperature. Just to be clear. The odor I am detecting is that of exhaust not gasoline. There are not hiccups when driving or accelerating. Runs really well except for the richness and backfiring when letting off the accelerator abrubtly to shift or to slow down. the fuel line is properly in place on both ends and there is no fuel leakage. The bike is housed in a garage and there is no smell of gas in the garage even when the bike sits for days unused (e.g. when I am out of town on a business trip).

I think I should examine the air filter. I've not cleaned it since it was installed in Oct. 2015. If the air filter was dirty, that might lead to richness. Does anyone know if the Lloydz high performance air filter needs cleaned periodically and, if so, how to do this?

G'day,

Vinish

G'day,

Vinish

Our patriotic stable:

Red 2012 XCT (wife's bike in NC)
Red 2012 XCT (my bike for NC)
White with custom flames 2012 XCT (wife's bike in FL)
Blue custom fire on a black 2012 XCT (my bike in FL)

2006 HD Softail Heritage (my bike when I was in MI - sold in Oct, 2017 after putting 45,000 miles and 20 states and one province on it - My first big bike and most of us will always remember our first with fond memories)
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post #7 of 14 (permalink) Old 02-05-2017, 10:38 PM
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The easy way to clean a cleanable air filter is with Dawn dish washing detergent and water in a tub. Let it soak for a while and if you have one of those disposable paint brushes with a kind of firm bristles to use to dislodge any particles that want to hang on; they work pretty good. Then using the kind of higher pressure faucets that work kind of like a shower head to rinse it well with hot water works pretty good. Once dry you can use a light spray of mineral oil. If you want to be able to see the mineral oil because it's clear you can add a bit of Marvel Mystery Oil to it so it turns red.

Or you could just get a K&N cleaning kit from the auto parts store and go by the instructions.
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post #8 of 14 (permalink) Old 02-05-2017, 10:43 PM
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By the way, speaking of the Marvel Mystery Oil, if you mix a 50/50 mix with Mobile One synthetic motor oil you have an excellent and inexpensive gun oil and machine oil that will last for a long time and work as well as the most expensive gun lubes out there. I doubt it even matters what oil weight you use so if you happen to have some in the garage already; you're golden.
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post #9 of 14 (permalink) Old 02-06-2017, 12:37 AM
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The bike will run more rich when it's cold, even at 50 degrees. That's why I was asking about if it's only before it's warmed up completely or all the time.
Popping on decel is most commonly an exhaust leak, you need some air in the exhaust for it to reignite.
Smooth idle means most likely no vacuum leaks. No rough running at speed tells us good chance no ignition issues (misfiring).
Bbob has a good point, you should double check electrical connections and also don't forget the PCV ground being tight.

Hard to tell from the photos because of light but they don't look like the bike is running overly rich. If it's tuned it is a little on the rich side so I'd expect a little black on them but I can't give you good advice on the plugs. I haven't changed my plugs on my bike so new the Vtwins
So far I'm leaning to some kind of exhaust leak and if no exhaust smell when warm then I'd say don't worry about running rich. If exhaust smell is more than normal after completely warmed up then what about the MAP, do you have it backed up on a computer? You could reinstall it in case it was corrupted somehow, not sure if anyone has run into that at all. A volt spike could have tweaked the fuel controller but I'm not very confidant in that, just something easy to rule out
Curious, you mentioned the ECM being flashed, are you talking the bikes ECM being flashed, and you are using a PCV ?

2013 Vegas 8 Ball
ATS +4
Ness Intake
Miller Mufflers
pcV
Ness Fly Bars
And a nagging itch to add more

2016 CCT
Miller Mufflers
Lloydz ATS +4
Long Ride Shields Screen
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post #10 of 14 (permalink) Old 02-06-2017, 06:48 AM
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Sounds a lot like what mine was doing before I fixed the exhaust leak.

https://www.victoryforums.com/36-vict...aust-leak.html
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