Question about 1986 Honda VT 500 C Shadow

1 Answer

Adjust idle on honda shadow - 1986 Honda VT 500 C Shadow

Posted by Anonymous on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Honda Master
  • 40,627 Answers

Hi, Anonymous you need to make sure you have no intake leaks by spraying some Brake Kleen, Contact Cleaner, Starting Fluid etc. around the intake manifold and seals, if the RPM's go up or down significantly then you have a leak that needs to be fixed before you can continue with the carburetor adjustment.
The engine should be at operating temperature with the enrichener off to set the idle between 950-1050 rpm. Turn the idle skrew clockwise to increase the idle speed and counterclockwise to decrease the idle speed. If you have access to your air fuel mixture skrew you may turn it as well, if not there is a video below on how to gain access, make sure you start with clean or new spark plugs. Gently turn the air fuel mixture skrew clockwise until it starts to bottom out "STOP" do not over tighten as it will damage the taper on the end, now back the skrew out 1-1/2 full turns to establish a starting point start the engine and check the idle rpm's and turn the idle skrew accordingly for 950-1050 rpm if necessary, turn the air fuel mixture skrew 1/4 turn at a time and let the engine settle for about 10 seconds, turn the skrew clockwise for a leaner mixture and counterclockwise for a richer mixture, you are seeking the highest rpm your air fuel mixture skrew can acquire without going past 3 full turns from bottom then resetting the idle skrew back down to 950-1050 rpm If you can not detect any rpm change and can not stall the engine by turning the air-fuel mixture skrew all the way in then your pilot/low-speed jet is too big and needs to be replaced with the next size smaller. Final adjustment should be made with a clean air filter mounted to the carburetor.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Adjusting the Mixture Screws
Honda Shadow VT700C Running Lean Fix Pilot Jet Needle Shim
http://www.cycleterminal.com/Service-Manuals/Honda-VT500C-Shadow-Service-Manual-English.pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://mybikemanuals.com/honda/honda-vt-owners-manuals

Posted on Jul 13, 2017

4 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

dmsr63
  • 2050 Answers

SOURCE: Front brake too stiff on 1984 Honda Shadow VT500C Shadow

You should have disc brakes??? They are not adjustable.
It is common for a caliper piston to freeze up or become corroded and bind up so it will not move freely.

Posted on Aug 12, 2009

  • 151 Answers

SOURCE: Should I adjust my valves? 1999 Honda Shadow Ace.

Well if its running good and you don't here any out of the ordinary rattling I wouldn't worry about it until at least 25,000-30,000 miles on the bike so probabley in another 10,000 miles or so have the valves adjusted unless you hear any unordinary rattling noises sooner then go in at that point and have them adjusted.

Posted on Apr 21, 2010

heimlich
  • 1978 Answers

SOURCE: How do you adjust the

On the left side of the motorcycle under the carburetors is a black plastic knob on the end of a cable. If you turn the knob clockwise it will raise the idle speed of both carburetors at the same time. If the idle is too fast, turn the knob counterclockwise to lower the idle speed.

Posted on May 18, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Are there two air flow screws on carbs on a 1100 shadow or just one


Hi, Bruce each carb has only one air fuel mixture screw and one idle adjustment screw for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Honda, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
VT1100 Mixture Screw Location
2008 Honda Shadow Aero Idle Problem
Air Fuel Mixture Adjustment 1100 Spirit
https://dl.dropboxusercontent.com/u/41894030/VT1100C/Honda%20VT100%20Haynes%20Manual.pdf

Aug 17, 2016 | Motorcycles

1 Answer

2004 Honda VT 1100 C2 Shadow Sabre carburetor adjustment


Hi, Anonymous it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
1995 VT1100C2 Air Fuel Mixture Pilot adjust
VT1100 Mixture Screw Location
Honda Shadow VT1100 Owner Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda shadow vt1100 Owners Workshop Manual

Apr 27, 2014 | 2004 Honda VT 1100 C2 Shadow Sabre

1 Answer

Carb adjustment


Besides the idle set and idle mixture, there are no other adjustments you can make without rejetting.

Feb 14, 2014 | 2007 Honda VT 750 Shadow

1 Answer

How to adjust fuel mixture on a 1986 Honda VT500 Shadow


Hi, Anonymous it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
85 VT500C Fuel Mix Adjustment
Adjusting the Mixture Screws
http://www.cycleterminal.com/Service-Manuals/Honda-VT500C-Shadow-Service-Manual-English.pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://mybikemanuals.com/honda/honda-vt-owners-manuals

Jun 09, 2012 | 1986 Honda VT 500 C Shadow

1 Answer

1986 Honda VT 500 C Shadow will not idle


Hi, Dmikecarley and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
85 VT500C runs intermittently Carb problems Fixxit
1983 VT500C idle backfires poor acceleration
http://www.cycleterminal.com/Service-Manuals/Honda-VT500C-Shadow-Service-Manual-English.pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://mybikemanuals.com/honda/honda-vt-owners-manuals

May 07, 2012 | 1986 Honda VT 500 C Shadow

1 Answer

My 1997 honda vt1100 shadow wont run or idle if i take the choke off and backfires on deceleration and acceleration what can i do to fix this issue?


Hi, Pastortmg1 and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
Starts choke but dies with little throttle
97 VFR won run at idle without choke engaged
Honda shadow vt1100 Owners Workshop Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda VT1100C2 Owner Manual Page 3

May 30, 2011 | 1997 Honda VT 1100 C2 Shadow Sabre

1 Answer

Need to adjust my honda shadow 500 vt carburator's fuel/air mixture


start by synchronizing your throttle plates. Honda calls the next step the "idle drop procedure". u need to know if you have fuel adj. screws or air adj. screws. fuel screws will be on engine side of carb slide, air screws will be on airbox side of carb slide. start leaning out mixture, (turn in fuel screw, turn out air screw. idle will increase so keep adjusting idle back to spec.after each turn if needed. Adjust about 1/4 to 1/2 turn at a time on each carb until there is no change in idle, then richen up mixture by one half turn. If u sync throttle plates first then follow this procedure, there should be no hesitation when you "blip" the throttle, and after revving it should return to idle smooth,

Apr 08, 2010 | 1986 Honda VT 500 C Shadow

1 Answer

2008 Honda VT 750 Shadow Aero carburetor adjustment


Hi, Rockin_hick1 you need to make sure you have no intake leaks by spraying some Brake Kleen, Contact Cleaner, Starting Fluid etc. around the intake manifold and seals, if the RPM's go up or down significantly then you have a leak that needs to be fixed before you can continue with the carburetor adjustment.
The engine should be at operating temperature with the enrichener off to set the idle between 950-1050 rpm. Turn the idle skrew clockwise to increase the idle speed and counterclockwise to decrease the idle speed. If you have access to your air fuel mixture skrew you may turn it as well, if not there is a video below on how to gain access, make sure you start with clean or new spark plugs. Gently turn the air fuel mixture skrew clockwise until it starts to bottom out "STOP" do not over tighten as it will damage the taper on the end, now back the skrew out 1-1/2 full turns to establish a starting point start the engine and check the idle rpm's and turn the idle skrew accordingly for 950-1050 rpm if necessary, turn the air fuel mixture skrew 1/4 turn at a time and let the engine settle for about 10 seconds, turn the skrew clockwise for a leaner mixture and counterclockwise for a richer mixture, you are seeking the highest rpm your air fuel mixture skrew can acquire without going past 3 full turns from bottom then resetting the idle skrew back down to 950-1050 rpm If you can not detect any rpm change and can not stall the engine by turning the air-fuel mixture skrew all the way in then your pilot/low-speed jet is too big and needs to be replaced with the next size smaller. Final adjustment should be made with a clean air filter mounted to the carburetor.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
idle screw air fuel mix
2008 Honda Shadow Aero Idle Problem
Honda 1998 VT750C Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda VT750C Owner Manual

Feb 02, 2010 | 2005 Honda VT 750 Shadow Aero

1 Answer

1984vt 500cc honda shadow back fires on front cylinder engine runs and idles good


Back fire to tht cylinder could be due to lack of gas (fuel) in the float chamber..try to check tht carburator and adjust the float.
Hope this helps!

Oct 23, 2009 | 1984 Honda VT 500 C Shadow

1 Answer

Carb settings for a Honda Shadow 500 1983


Hi, Pfurey it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
1983 honda shadow 500 carb adjustments
Carburator Theory and Tuning
http://www.cycleterminal.com/Service-Manuals/Honda-VT500C-Shadow-Service-Manual-English.pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://mybikemanuals.com/honda/honda-vt-owners-manuals

Sep 19, 2009 | 1983 Honda vt 500 ft ascot

Not finding what you are looking for?
1986 Honda VT 500 C Shadow Logo

Related Topics:

140 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

75797 Answers

Mike

Level 3 Expert

4336 Answers

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

Answer questions

Manuals & User Guides

Loading...