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I just need to know the air/fuel mixture screw setting for my suzuki tf 125. screw it all the way in and then how many turns out

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HI it is usually 1 to 1.5 turns out depends on the carburetor and how clean all the ventures are (all the air jets)

Posted on Sep 28, 2010

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Suzuki Raider J 110 air-fuel mixture adjustment


Hi, Ed 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 for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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Idle mixture adjustment air or fuel screw adjustment
Suzuki Raider Pro 110 2013 service manual DOWNLOAD FREE FULLMANUALS COM
http://mototh.com/files/suzuki/Smash/9900B-45H10-000-Smash-110.pdf
http://mybikemanuals.com/suzuki

Sep 02, 2017 | Suzuki Motorcycles

1 Answer

1978 Suzuki GS 750 E air/fuel 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 for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.thegsresources.com/_forum/showthread.php?70950-Fuel-Air-screws-on-79-GS750-carbs
GS750 carb tuning help
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
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http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Apr 01, 2013 | 1978 Suzuki GS 750 E

1 Answer

Suzuki ts 125 not starting


Hi, Suzuki 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.
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May 06, 2017 | Suzuki Motorcycles

1 Answer

Where is the mixture screw on a suzuki 125cc intruder vl 2008, as it appears to be running rich and no manual, plugs get black and wet.


the mixture screw is underside of carb,if its between cylinder and front side of carb its fuel/air,to lean turn screw clockwise,if its between backside of carb and air box/filter,its air/fuel,turn screw counter clockwise to lean,adjust with 1/8 turn at a time.

Feb 20, 2011 | 2004 Suzuki VL 125 Intruder LC

1 Answer

I TOUCH THE CARBURATOR OF MY SON TTR 50.. WHAT CAN I DO TO PUT BACK STOCK SETTING...???


the carburetor settings are easy : 1- locate the screw mixture air /fuel 2- wind the screw all the way in 3- unwind the screw 1 1/2 turn and this should be sufficient to set the carburetor back to its original settings for the air/fuel mixture . 4- as for the idling screw , wind it down to suit the revs required

Dec 31, 2010 | 2002 Yamaha TT-R 125

1 Answer

2003 Yamaha TW 125 A/F mixture adjustment


Hi, Revasns2001 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.
7. 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.
8. 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.
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Aug 23, 2010 | 2003 Yamaha TW 125

1 Answer

All the settings for the carburettor for a Suzuki GZ125 Marauder and why when you open the throttle teh engine cuts out and dies


hi buddy the picture below will show you the mixture screw unscrew this 1/2 of turns out if still no difference unscrew another 1/2 if getting worse screw in 1/1/2 turns it just play with it budd this is the screw that puts the correct amount of fuel with the air 29775f1.jpg

Aug 30, 2009 | 2002 Suzuki GZ 125 Marauder

1 Answer

Where is the air/fuel mixture scrue?


i'm not too familiar with dirtbikes but my experience with street bikes it has been on the underside of the carbs and if stock it is typically covered by a brass plug. this plug is just there to satisfy the epa you need to drill it out but be careful the screw is directly underneath the plug so as soon as you break thru pull back then use a screw to extract the plug. hope this is the answer you are looking for.

Jun 29, 2009 | 2003 Suzuki RM 125

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