Question about 2001 Honda CBR 929 RR Fireblade

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2001 cbr929 runs very rough below 3000rpm, smooth above

Posted by Anonymous on

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  • Honda Master
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Hi, Anonymous and the usual suspects are:
1. 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.
2. 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.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor contaminated, sticky float, plugged jets.
13. Carburetor vacuum diaphragm torn, cracked, not seated or installed improperly.
14. Multiple carburetors out of sync.
15. Fuel filter clogged.
16. Old or contaminated fuel.
17. Fuel tank vent system plugged or carb vent line closed off.
18. Gas cap diaphragm valve faulty.
19. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
20. Carburetor controls misadjusted.
21. Incorrect valve timing.
22. Valve springs floating, weak, or broken.
23. Damaged intake or exhaust valve.
24. Incompatible performance parts.
25. Control module may be in "LIMP" mode
26. 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.
found this helpful answer from motorcycle mechanic on JustAnswer com
Stutter under 3000rpm HELP CBR Forum Enthusiast forums for Honda CBR Owners
2000 2001 Honda CBR929RR Fireblade Service Manual Moto Data Project
http://www.partsfish.com/page/oem-parts-for-honda
Honda CB Owners Manuals

Posted on Oct 01, 2017

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Posted on Jan 02, 2017

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SOURCE: idels fine

If you don't have a check engine light, Start with the air and fuel filter, work your way up to a tune up. Clean the throttle body as best you can on the inside, behind the throttle plate/s

Posted on Feb 24, 2011

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2001 honda cbr 929 rr help wont start fuel pump works tested but doesnt kicked on when switched on main fuse blew replaced opened wire harness replaced burned wire looked didnt see any open wires


Hi, Keyth the following is a systematic procedure for diagnosing fuel pump issues designed to keep "DRACHMA" to a minimum. If you need parts check with Amazon and eBay first to keep costs down.
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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.
http://www.fireblades.org/forums/honda-fireblade/18340-2001-cbr929-will-not-start.html
http://www.esportbike.com/forums/86-tech/127250-cbr929-fuel-pump-not-working.html
2000 2001 Honda CBR929RR Fireblade Service Manual Moto Data Project
http://www.partsfish.com/page/oem-parts-for-honda
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