Question about 2004 Honda CRF 100 F

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My crf 100 wont start it seems like its not sparking. i got a new spark plug and i dont see no spark what do i do i wanna ride

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Be sure that the handlebar and side stand kill switches are off. Have a friend kick the bike over ( in neutral ) while you ground the bottom of the plug against the cylinder. Without being grounded, the plug can't spark. Don't twist the throttle more than once when starting. You can easily flood the engine.

Posted on Mar 17, 2011

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1 Answer

No spark or very little spark, could it be the ignition switch ?


Try new plug .,plug could be fouled.,.,if not prob coil, or stator,cdi?

May 12, 2014 | 2005 Honda CRF 100 F

1 Answer

Gear oil for 2004 honda crf 100


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Jan 11, 2014 | 2004 Honda CRF 100 F

1 Answer

2008 Honda CRF 100 F will not start


Hi, Randy and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
14. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
15. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
16. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections loose, or connected to the wrong cylinders.
17. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
18. Faulty neutral, clutch, kickstand safety switch.
19. Faulty fuel pump or fuse or relay.
20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
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.
2008 honda crf won start
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CRF80F CRF100F service manual repair 2004 2013 CRF80 CRF100 Download... $15
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HONDA CRF100F Owner Manual

Apr 07, 2013 | 2008 Honda CRF 100 F

1 Answer

2000 gsxr750 wont start.


Is your cluch in when your trying to start it?

Jan 18, 2013 | 2000 Suzuki GSX-R 750

1 Answer

Not getting spark at the spark plug on a 04 crf 70


Start with new plug ., then work your way to stator ., so plug., plug wire ,.coil.,, cdi ., stator.,., easy to test all them and chase your faulty part

Dec 05, 2012 | 2004 Honda CRF 100 F

1 Answer

2005 honda crf100f motorcycle will not start


If the spark at the plug is goog then its a fuel or choke / air problem .Check to see if the plugs are wet after turning over the engine a few times .you may have a sticky choke that not letting enough air in with the fuel mixture .

Mar 13, 2010 | 2005 Honda CRF 100 F

2 Answers

2003 crf 4 stroke. has compression. no leaks. engine sparking. fuel system fine, plug wet. engine wont start?


Gotta start with the simple things...
How do you know the compression is fine? Since you did not give a compression reading I do not know what method you used to test the compression.
How do you know the fuel system is fine? The plug is wet with what? Could it be water?
How do you know the spark is fine? Have you used a spark tester? Or did yuo use the spark plug on the side of the head? Did you know a bad spark plug can still spark under regular condition but wont spark under compression?

You left out valve timing- its a 4-stroke.
First put in a new plug. Then see if it hits on a prime ( see my tip on diagnosing a small engine).
If you have double checked all the basics and are sure we have fuel,compression, and ignition and it still wont start then check your flywheel key and valve timing.

Jan 02, 2010 | 2003 Honda CRF 450 R

1 Answer

2005 crf 70 wont start.new plug and wire.


Hi and welcome to FixYa,

Initial checks:
  • check for spark on the sparkplug when starting;
  • check that fuel is reaching the combustion chamber (sparkplug would be wet);
  • check for engine compression.

Postback results.

Good luck and thank you for asking FixYa.

Dec 28, 2009 | 2005 Honda CRF 100 F

1 Answer

Crf 100 wont start right away half to kick it for ever


start with a new spark plug and make sure you're air filter is clean

Jun 09, 2009 | 2004 Honda CRF 100 F

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