Question about 2002 Honda VTX

1 Answer

Honda VTX 1800 2002

Thumbscrew left side of engine going to bottom of FI throttle body - what is it?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,567 Answers

The screw is the idle speed adjuster. Turn it clockwise and the idle will increase.

Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock.

Please rate this answer. Thanks.

Posted on Jun 20, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2005 Honda VTX 1800 surging

Hi, Kelly and the usual suspects are:
1. Extremely lean fuel mixture.
2. Dirt, rust, water, or ethanol sludge in the fuel system.
3. Sticky throttle cables.
4. Multiple carburetors not in synchronization.
5. TPS sensor out of adjustment or faulty.
6. Wrong spark plugs for the type of service.
7. Throttle bodies not in synchronization (FI)
8. Faulty O2 sensor.
9. Clogged, stuck, or faulty IAC valve.
10. Aftermarket components not compatible with ECM.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Low speed surging
Honda VTX1800R Owner Manual service manual, not owners
Honda VTX1800C Owner Manual

Btw, I’m available to help over the phone in case u need at

Mar 09, 2014 | 2005 Honda VTX 1800

1 Answer

How to install the throttle cable on a honda vtx 1300

Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Throttle Cable replacement on vtx 1300c
throttle cable replacment
Honda VTX1300S Service Manual
Honda VTX1300C VTX 2004 Owner Manual

Btw, I’m available to help over the phone in case u need at

Nov 29, 2013 | 2003 Honda VTX 1300 Retro

1 Answer

2008 Honda VTX 1800 F idle adjustment

Hi, Anonymous idle adjustment on fuel injected engines can range from simple to complex depending on the year-make-model of the motorcycle. Before any adjustment can be made, all intake leaks must be corrected and all intake sensors TPS-IAC-MAP-CTS etc. should be checked for integrity. Some models will have an adjusting screw at the throttle stop, others need to be connected to a Scanalizer to be adjusted which is usually performed at the Dealership.
For more information about your question and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Honda VTX forums for Honda VTX 1300 VTX 1800 motorcycles
07 VTX 1800 Idle speed
Honda 2005 VTX1800C Owner Manual
VTX1800C 2002 04 HONDA SERVICE REPAIR MANUAL Download Manuals Technical $15

Btw, I’m available to help over the phone in case u need at

Apr 17, 2013 | 2008 Honda VTX 1800 F

1 Answer

Honda vtx 1300 backfires when letting off throttle,never did it before until it was laid down on loose gravel

replace the air filter, and when the covers off tap the bottom of the carbs with a hammer and piece of wood or plastic.

Sep 07, 2012 | 2004 Honda VTX 1300

1 Answer

T P S Sencor diagram .where is it, please!

Hi Sharon:
Accordint with this, on 1991 Honda Accord 2.2L FI 4cyl the Throttle Position Sensor is located under hood, center, rear engine area, mounted on throttle valve assembly.


Fig. 1: The throttle body is attached to the intake manifold inlet. Always use a new gasket anytime the throttle body is removed-1990-93 Accord shown (others are similar)- CLICK HERE FOR IMAGE ZOOM The throttle position sensor is mounted on the side of the throttle body and is connected to the throttle shaft.
  1. Disconnect the negative battery cable.
  2. If necessary, remove the throttle body for access.
  3. The sensor may be removed by unscrewing the retaining bolts.
  4. Reinstall in the reverse order of removal. Make certain the sensor is correctly mated with the throttle body shaft.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Nov 23, 2011 | 1991 Honda Accord

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

How do I adjust the idle speed

If you look where the throttle cables are mounted to the throttle body, open the throttle when you close it check the point at which the throttle meets the stop, this is the point where the idle screw is addjusted, from this point on the underside you will see the screw has extension cable it will be visible on the underside from left hand side, right on some models

May 01, 2011 | 2006 Honda VTX 1300 S

1 Answer

My honda vtx 1300 year 2004 when you acelerate the engine jumps a bite before the going

This may seem silly but ;how is the throttle cable adjustment .Had a 2003 come in and the complaint was the same.Adjusted the handlebar cable adjustment and what a difference.Also check the vaccum line onthe right side under the edge of the tank,near the rear.This can cause stumble. NNo you do not have to remove tank to do this..Good Luck

Dec 31, 2010 | 2004 Honda VTX 1300 Retro

1 Answer

How do I take the stock grips off of my 2004 Honda VTX 1300?

Left side .use a set of screwdrivers and insert between thehandle chrome ring and thecaliper assembly.gently andevenly pry the stock handle off.If a lot of resistance is felt put a drop of wd 40 and allow to loosen up the adhesive used by the factory.By the t[me you are half way offthe handle should be able to be twisted off. remember to wipe off the wd before installing new handle.. Right side remove philipshead screws on the throttle manacle[control] open it up like a **** and remove throttle cables from handle.the r. handle will now slide off bars

Dec 29, 2010 | 2004 Honda VTX 1300

Not finding what you are looking for?
2002 Honda VTX Logo

314 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

Arnie Burke
Arnie Burke

Level 3 Expert

5055 Answers


Level 3 Expert

81400 Answers


Level 2 Expert

342 Answers

Are you a Honda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides