Question about 2005 Honda CRF 70 F

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2005 Honda CRF 70 F stalls with throttle

Will idle but when given gas, it shuts off

Posted by Anonymous on

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  • Honda Master
  • 47,747 Answers

Hi, Anonymous and the usual suspects are:
1. Idle port, transfer ports, slow air jet clogged.
2. Idle adjusting screw set too low.
3. Air fuel mixture adjustment too lean.
4. Pilot/slow fuel jet clogged.
5. Faulty accelerator pump.
6. Float level too low.
7. Float bowl contaminated old fuel, water, dirt, rust, etc.
8. Carburetor bowl vent line clogged/blocked/pinched.
9. Fuel line to carburetor kinked or pinched.
10. Fuel filter clogged.
11. Intake manifold leak.
12. The gas cap is not venting properly or fuel tank venting system blocked.
13. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
14. Needle and seat stuck closed in the float bowl.
15. Multi carburetors not in sync.
16. Faulty fuel pump.
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.
HELP 50 idles fine dies when give it throttle
How To Carburetor Idle Pilot Screw Adjustment Honda XR70
CRF70F service manual repair 2004 2012 CRF70 Download Manuals Technical $15
http://www.partsfish.com/page/oem-parts-for-honda
HONDA CRF70F Owner Manual

Posted on Oct 09, 2017

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Posted on Jan 02, 2017

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SOURCE: Crf 450 front preload adjustment

Hi ...... Any preload and/or damping will be adjustable from the top of the forks (even upside down forks). Anti-clockwise to reduce, clockwise to increase. You may find that a previous owner has increased the 'weight' of fork oil as a cheap/easy alternative to adjustment or aftermarket linear or progressive springs.

Posted on Dec 29, 2008

  • 1 Answer

SOURCE: Honda 2003 crf 230 bike idles fine with choke

You sound like you have a blocked idle jet in the carb. Honda trail bikes love new oil, clean air cleaners and clean fuel. After a while a build up of tannins and crusty residue will invade the carby bowl and usually migrate through the carb via the jets and the emulsion tube where the jet needle runs. The easiest way to fix your problem is to remove the carb and go through it. Clean all jets and check float height and generally get it back to scratch. You will have to re- adjust your idle and mixture settings after you have fited it back to the bike. If you are not Mechanicaly savi then I would suggest you take the bike in to your local honda dealer and get them to go through the carb for you.. It's not a big problem and is easlily fixed.

Hope this helps...

Cheers...

Posted on Apr 28, 2009

  • 11 Answers

SOURCE: Bike is sputtering in high 2nd/3rd gear, best kind in idle

Sounds like a lean condition. Spark plug should be a tan brown.
I would say the carb probably wasn't drained prior to storage and your main jet is gummed up. Gas deteriorates very quickly especially in vented containers like the float bowl of a carb.
clean your carb for sure.

Posted on May 20, 2009

co7196
  • 3433 Answers

SOURCE: 2003 xr80 dirt bike, idle is super high

Yrs, carb needs cleaning

Posted on Jun 13, 2009

  • 1509 Answers

SOURCE: How do you remove the front tire from a Honda crf

The axel has a nut on one end and two bolts or one pinching the shaft on the other. Jack the wheel off the grond unscrew the nut loosen the pinch blots pull out the axel and the wheel falls out Watch wher the spacers go as they have to go back turned the right way. the brake rotor has to be lined up with the caliper to put it back in as you don't push the brake with the wheel off as the pads will have tobe pried open to get the rotor back in. Tring to fix a flat? same as a bicycle except use soapy water don't forget to use water to cheak for leaks then put on the powder on the tube before it all goes back good tire irons come from bike dealers and bike parts suppliers. Screw drivers cause more troble than thier worth. Road going bikes chage the tube patches are Illegal DOT

Posted on Aug 15, 2009

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2005 Honda CRF 70 F dies when the throttle is opened@


Hi, Anonymous and the usual suspects are:
1. Idle port, transfer ports, slow air jet clogged.
2. Idle adjusting screw set too low.
3. Air fuel mixture adjustment too lean.
4. Pilot/slow fuel jet clogged.
5. Faulty accelerator pump.
6. Float level too low.
7. Float bowl contaminated old fuel, water, dirt, rust, etc.
8. Carburetor bowl vent line clogged/blocked/pinched.
9. Fuel line to carburetor kinked or pinched.
10. Fuel filter clogged.
11. Intake manifold leak.
12. The gas cap is not venting properly or fuel tank venting system blocked.
13. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
14. Needle and seat stuck closed in the float bowl.
15. Multi carburetors not in sync.
16. Faulty fuel pump.
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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https://crfsonly.com/forum/viewtopic.php?t=17026
CRF70F service manual repair 2004 2012 CRF70 Download Manuals Technical $15
https://www.partsfish.com/page/oem-parts-for-honda
HONDA CRF70F Owner Manual

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