Question about 1997 Honda XR 250 R

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Mixture screw Does any one know the stock setting of the fuel mixture screw of a 1997 Honda xr250r?

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  • Contributor
  • 57 Answers

1 1/4 to 1 1/2 turns out. Dont screw it in too tight or you'll bend the end of the needle.

Posted on Jan 03, 2014

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Posted on Jan 02, 2017

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voodoomox
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SOURCE: how much oil in xr250r??

Oil change only...
XR250L XR250R................................. 1.3 liters (1.37 US qt)
XR400R.............................................. 1.7 liters (1.8 US qt)

Oil & filter change...
XR250L XR250R................................. 1.4 liters (1.5 US qt)
XR400R.............................................. 1.8 liters (1.9 US qt)

After engine rebuild...
XR250R, 1986 through 1995 XR250L..... 1.6 liters (1.7 US qt)
1996 and later XR250R........................ 1.7 liters (1.8 US qt)
XR400R.............................................. 2.2 liters (2.3 US qt)

Posted on Jul 11, 2009

  • 10 Answers

SOURCE: where exactliy is located the air-fuel mixture

The pilot air screws are sealed to prevent tampering. If access is necessary, the plugs can be removed. The Clymer manual, number 314-3, gives a detailed procedure, with pictures. Be careful! This requires skill with a drill in a small space, and it is possible to destroy a carburetor with poor technique.
Good Luck!

Posted on Apr 29, 2010

sisadsl
  • 1508 Answers

SOURCE: air fuel mixture adjustment 04 honda 125 innova anf

the jetting should not be a problem, perhaps the air cleaner element is dirty or the element even if it looks ok sometimes needs a new one, the smaller motors often rely on the right intake vacumn through the filter for the carbs to work as designed

Posted on May 22, 2010

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I have a Honda cl 175 from 1976 what are the carb settings ?


Hi there. The ''default'' settings are :
step #1 turn the mixture and idle screw all the way in clockwise
step #2 you turn counter clockwise the mixture screw for 1,5 rounds, and the idle screw when the motor can run freely without going off.
#3 Then you adjust the mixture screw if you do not like the outcome by micro movements clockwise. Hope i helped.
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1 Answer

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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.
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http://www.partsfish.com/page/oem-parts-for-honda
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



Jul 07, 2014 | 1999 Honda F6 C Valkyrie

1 Answer

Hi does anyone know the stock setting of the fuel mixture screw on a 1997 honda xlr 125cc


Try to google some specs online, but a good starting point to get started is to close it all the way down, then open it one and a half turns. This will get you close enough to start and idle long enough for you to adjust by ear.

Feb 25, 2014 | 1997 Honda XLR 125 R

1 Answer

1993 Honda XR 250 R air fuel mixture screw location


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 and printing please click on the blue links below. Good luck and have a wonderful day.
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1993 Honda XR 250 air fuel mixture screw location Google Search
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http://www.partsfish.com/page/oem-parts-for-honda
Honda XR250R Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Aug 15, 2012 | 1993 Honda XR 250 R

1 Answer

Honda 1997 shadow spirit 1100 air/fuel mixture screw location


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 please click on the blue links below. Good luck and have a wonderful day.
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http://www.partsfish.com/page/oem-parts-for-honda
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Jun 12, 2012 | 1997 Honda VT 1100 C Shadow Spirit

1 Answer

1997 Honda XRV 750 Africa twin air-fuel mixture adjustment


Hi, Harrythespid 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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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



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2 Answers

1997 Honda XR 250 R hard to start cold


if it runs then the plug is not the problem
what is the problem is the carby
check that the choke is operational;, the float level is at the right level, and the ignition timing is correct

Jun 23, 2017 | 1997 Honda XR 250 R

1 Answer

1986 Honda XR 250 R valve adjustment


Hi, Kizzy_lee 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 and printing please click on the blue links below. Good luck and have a wonderful day.
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http://www.partsfish.com/page/oem-parts-for-honda
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


May 30, 2010 | 1986 Honda XR 250 R

1 Answer

How much oil in xr250r??


Oil change only...
XR250L XR250R................................. 1.3 liters (1.37 US qt)
XR400R.............................................. 1.7 liters (1.8 US qt)

Oil & filter change...
XR250L XR250R................................. 1.4 liters (1.5 US qt)
XR400R.............................................. 1.8 liters (1.9 US qt)

After engine rebuild...
XR250R, 1986 through 1995 XR250L..... 1.6 liters (1.7 US qt)
1996 and later XR250R........................ 1.7 liters (1.8 US qt)
XR400R.............................................. 2.2 liters (2.3 US qt)

Jul 11, 2009 | 1997 Honda XR 250 R

1 Answer

Fuel mixture screw


Begin by screwing the mixture screw in all the way until it stopps,,,but ONLY JUST STOPS,,,,,DONT FORCE IT,,,then look at the top of the screw slot,,and call that 12 oclock,,,now turn the screw out to you three full turns going through 12oclock,,that means 12 to 12 is one turn.

then start the bike,,,finish your adjustments now by slowley turning the screw outwards until the engine starts to misfire,,,at this point turn the screw back in one half to three quarters of a turn.Now you have the mixture set roughly.
For fine tuning,, you need to use a monometer while turning the mixture screw
Best of luck...

Jan 19, 2009 | 2005 Honda CR 125 R

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