Cuttin' out on me?? - VTXOA
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post #1 of 14 (permalink) Old 06-11-2019, 09:45 PM Thread Starter
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Thumbs up Cuttin' out on me??

Hello everyone! I have a 2003 VTX 1800R with a K&N air filter, DynoJet Power Commander III and Freedom 2 into 1 exhaust. It's always run great (but maybe a little rich). Now when it gets warmed up it is cutting out on me-especially when I get on the highway. I've got almost 14K miles on it now and know it's probably time for valve adjustments and all that. Any advice on what might be going on and/or if it's time to take it to someone who really knows what they're doing (and have to pay for it)! Any advice is greatly appreciated. Thanks!!
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post #2 of 14 (permalink) Old 06-11-2019, 10:56 PM
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First thing is to check your battery terminal connections. Make sure they are clean and tight. Use a socket wrench to tighten them.

Has the "ground fix" been done? If not that would be your next step.

Any "Vampire" type wire splices used on the power commander wiring? Those are known to cut through the wires and should be soldered instead.

Hope this helps and keep us posted as to what you find to help others.

You should also update your profile with your bike info then you would not have to type all of it each time you have a question.
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2002 1800C ILLUSION BLUE - Cobra angle slash cuts - Cobra FI2000 - Memphis Fats 21" - Hondaline 24L bags with Easy Brackets - Corbin Gunfighter and a lot more.....


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post #3 of 14 (permalink) Old 06-11-2019, 11:07 PM
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Here is the link for the "ground fix" how to.

https://tech.bareasschoppers.com/ele...-for-vtx-1800/
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2002 1800C ILLUSION BLUE - Cobra angle slash cuts - Cobra FI2000 - Memphis Fats 21" - Hondaline 24L bags with Easy Brackets - Corbin Gunfighter and a lot more.....


. ====>> KEEP IT VERTICAL <<====
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post #4 of 14 (permalink) Old 06-12-2019, 04:59 AM
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Does she fire up and run nicely when cold and cut out when warm/hot?
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post #5 of 14 (permalink) Old 06-12-2019, 09:08 AM
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After trying what Jim Travis said, it could be the Fuel pressure regulator (FPR) the first couple years of these beasts are more commonly having this issue, as the little diaphragms in them dry out and crack, a factor of old age, not overuse or misuse. This condition allows fuel to leak into the cylinders and into the crankcase. Located just under the left side of the fuel tank between the jugs, held in place by 2 small bolts, with a couple hoses coming off. $40, + or -, will get you a new one. A telltale sign it's going bad is a strong fuel smell in your oil, or an over-full reading on the dipstick. Don't ride like this- no lube for the bearings. Change the FPR, change your oil filter and oil, using a cheap brand to flush out the contaminants. Run it around the block, then change just the oil a 2nd time using whatever good oil you prefer. Let us know what you find.

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post #6 of 14 (permalink) Old 06-12-2019, 11:00 AM
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Quote:
Originally Posted by rangers4u View Post
After trying what Jim Travis said, it could be the Fuel pressure regulator (FPR) the first couple years of these beasts are more commonly having this issue, as the little diaphragms in them dry out and crack, a factor of old age, not overuse or misuse. This condition allows fuel to leak into the cylinders and into the crankcase. Located just under the left side of the fuel tank between the jugs, held in place by 2 small bolts, with a couple hoses coming off. $40, + or -, will get you a new one. A telltale sign it's going bad is a strong fuel smell in your oil, or an over-full reading on the dipstick. Don't ride like this- no lube for the bearings. Change the FPR, change your oil filter and oil, using a cheap brand to flush out the contaminants. Run it around the block, then change just the oil a 2nd time using whatever good oil you prefer. Let us know what you find.
You're right, if it's running really rich, possibly the FPR, but that does not at all explain the cutting out. A failed FPR won't have the bike cutting out on the freeway.


Based on what he's described, I would point in the direction of the PCIII.
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post #7 of 14 (permalink) Old 06-12-2019, 01:09 PM
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Reading about the FPR for the n-th time.

I have a 2003 1800s, 91,000 miles, no problems whatsoever.
Is the FPR a part that is guaranteed to break and therefore should be proactively replaced?
Or just leave alone?

2003 1800s, 88k miles
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post #8 of 14 (permalink) Old 06-12-2019, 02:24 PM
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Quote:
Originally Posted by henkvdb View Post
Reading about the FPR for the n-th time.

I have a 2003 1800s, 91,000 miles, no problems whatsoever.
Is the FPR a part that is guaranteed to break and therefore should be proactively replaced?
Or just leave alone?

let me say.. if you do have the original FPR.. you hold the record...
time and mileage...


for the cutting out...
side stand switch...

run/stop switch
and there wires..
even the key switch..
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post #9 of 14 (permalink) Old 06-12-2019, 02:55 PM
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Quote:
Originally Posted by henkvdb View Post
Reading about the FPR for the n-th time.

I have a 2003 1800s, 91,000 miles, no problems whatsoever.
Is the FPR a part that is guaranteed to break and therefore should be proactively replaced?
Or just leave alone?
Yes, they fail due to age, not mileage. So replace it if it hasn't been already
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post #10 of 14 (permalink) Old 06-12-2019, 03:46 PM
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Originally Posted by chuck_VTX F View Post
let me say.. if you do have the original FPR.. you hold the record...
time and mileage...


Record holder?

You have a point here, I bought this 2003 in 2010, with only 14k miles on it.
It is therefore possible that it already had been replaced by then, so no 'record'.
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2003 1800s, 88k miles
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