Question about 2004 Honda VTX 1800

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2002 vtx 1800c wont idle, new plugs, wires ok, no fi

Vtx 1800c wont idle, new plugs, wires ok, no fi light codes, runs ok at high speed, pops at low speed, cleaned out old fuel with injector cleaner.

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  • mjbaxter Aug 05, 2009

    Fuel pressure regulator, NOT jets, ecu or plugs

  • mjbaxter Aug 05, 2009

    The problem was the fuel pressure regulator, not the jets, ecu or plugs or wires!

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AGREED, had the same problem; hesitation, skipping, popping at low speeds. Ran good w/ new plugs for short time. tried injector cleaner. No FI codes. Dealer couldn't figure it out after $200! I replaced the $26 fuel pressure regulator and she runs Great!!

Posted on Aug 21, 2009

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Clean the jets your problem is in them

Posted on Aug 04, 2009

  • shadowvlxer Aug 04, 2009

    clean the jets your problem is in them

  • shadowvlxer Aug 05, 2009

    sorry i was not too much help there. i tried though.

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1 Answer

My 2005 Honda VTX 1800 doesn't start, changed battery no help. Neutral light goes out as soon as I hit the start button


Hi, Pat and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a load test if necessary.
4. Check the battery terminals for damage or corrosion check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
5. Tip over sensor needs a reset.
6. Faulty ignition switch.
7. Faulty starter button.
8. Faulty kickstand or clutch pull in switch/sensor.
9. Starter control circuit, relay, or solenoid faulty.
10. Main fuse or circuit breaker may be blown or faulty.
11. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.vtxoa.com/forums/6-vtx-1800-tech-board/201598-2002-vtx-1800c-won-t-start-switch.html
VTX 1800 wont start need Help
What Do Check When My Motorcycle Won Start
Honda VTX1300S Service Manual
Honda VTX1800C Owner Manual

Nov 01, 2016 | 2005 Honda VTX 1800

1 Answer

I have a honda vtx 1800c, It has new plugs, wires and injectors, it will idle just fine when cold, but when it warms up the idle goes down to nothing until the bike doesnt run.


Not uncommon, I cheated, I set mine to idle when warm and let it idle a little fast when cold. It warms up and then idles fine. Unless you want to spend the money on a carb rebuild which didn't work for me or spen the money on a new carb which expensive, just set the idle when hot.

Jun 11, 2015 | Honda Motorcycles

1 Answer

I have 2004 honda vtx 1800c that won't idle when it's been sitting over night. Will idle after it's been driven for about 10 minutes. Any ideas.


i had same with my vtx 1800 i adjusted the idle , if you look to the left of engine between the pots there is a little plastic wheel on the end of a cable which goes to the throttle body, i think it is anti clockwise to increase. try this it worked ok for me however there is a cold start on these and it is operated by coolant temperature check your coolant level and top up if neccessary with the correct coolant as specified (not got info at hand)

Sep 06, 2011 | 2004 Honda VTX 1800

1 Answer

2002 vtx 1800c has rough idle and skips like fuel or spark issues. new plugs still same problem


did you sort this out? getting same issues and by poular result it seems to be the fuel pressure regulator.

Nov 04, 2010 | 2004 Honda VTX 1800

1 Answer

2002 honda 1800c vtx, stalling going down a hill with gallon or less gas


Your fuel petcock is in the rear of the tank. At steep downhill angles all the fuel flows to the front of the tank and not in the petcock. Meaning at steep downhill angles with low fuel level . . .your bike doesn't get any fuel.

Jul 25, 2010 | 2007 Honda VTX 1800 C

2 Answers

Popping or back fire at low speed or rpms


You could have bad fuel.
You could have a plug wire bad or with water / condensation try removing wire and shooting a little w-d40 on it.

Jul 22, 2010 | 2005 Honda VTX 1300 C

3 Answers

2002 Honda VTX 1800C. Idle Problem


sound like you just running low on fuel you probably dont have a problem at all don't let you fuel level run so low if it does that turn your fuel petcock to reserve and head for the nearest gas station.

May 03, 2010 | 2004 Honda VTX 1800

1 Answer

Still won't start


You have electronic fuel injection. The fuel pump may not be working. Check all the fuses and wire connections. Also clean the air filter.

Mar 23, 2009 | 2007 Honda VTX 1800 F

1 Answer

4.3 Liter V-6 Idles rough when in gear, runs fine on highway.


Can you check fuel trims at idle and under load?
If fuel trim is high at low speed and load, look for a vacuum leak.
If fuel trim is high at high speed and loads, look for fuel volumn problem or restriction.
If fuel trim is high at all speeds and loads look for pcm input fault, maybe a maf sensor problem?
If fuel trim is negative low speed and load, look for fuel pressure regulator or injector leak. If fuel trim is negative at all speeds and loads check ect and iac.

If you have the spider fuel system, that system is noted for problems. key on engine off, 60--66 psi fuel pressure.

Mar 06, 2017 | 1999 Chevrolet Silverado 1500

1 Answer

VTX 1800C Running rich


go ahead and run a full tank of 93 octain gas through it and when you get a chance open it up in each gear, it will clean what ever is in it out.

Freakville03

Dec 14, 2008 | 2004 Honda VTX 1800

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