Question about 2005 Honda CBR 125 R

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Bike cuts out at 10,000 rpm

I have an 08 cbr 125 r and it keeps cutting out at 10,000 rpm and wont start unless i leave the engine off for about 20 seconds and then its fine untill i reach 10,000 rpm again it only seems to do this in 3rd, 4th and 5th gear it only started doing it this morning and i used the bike yesterday and it was fine any help would be much appreciated thanks luke.

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  • luke_murray Jun 23, 2009

    im not red lining it mate the red line is 11.5 and i wish i could but im skint

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Eventually it won't start at all if you keep redlining her like that. My advice to you is get a faster bike.

Posted on Jun 23, 2009

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1 Answer

2005 Honda CBR 125 cut out and now won't start


Hi, Sam and the usual suspects are:
1. Severely discharged or a damaged battery must have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary 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. Faulty alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Faulty main circuit breaker or ignition switch, check for loose connections and continuity.
5. Faulty system and or ignition relay, check for continuity.
6. Faulty ignition coil, ignition/electronic module.
7. Faulty CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Fuel tank empty
11. Fuel tank contaminated with ethanol sludge.
12. Water or dirt in the fuel system, or clogged filter.
13. Restricted, blocked or kinked fuel line.
14. Faulty fuel pump.
15. Faulty pressure regulator.
16. Faulty or clogged fuel injectors.
17. Lean angle switch is faulty or needs adjustment.
For more information about your issue and valuable "FREE" downloads that you need please click on the blue links below. Good luck and have a wonderful day.
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1 Answer

2002 Honda CBR 600 F(4)i cuts out


Hi, Kerry_leblan 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 preliminary 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. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
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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Apr 20, 2011 | 2002 Honda CBR 600 F(4)i

1 Answer

When the bike is cold its starts up then wont hold the revs and cuts out.after several attempts it will hold the revs and works ok.


Your choke or cold start needs adjusting slightly.

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Feb 12, 2011 | 2005 Honda CBR 125 R

1 Answer

2001 Honda CBR 929 RR Fireblade keeps cutting out


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 preliminary 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. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
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

Jan 14, 2011 | 2001 Honda CBR 929 RR Fireblade

1 Answer

Bike wont go past 10,000 rpms. power just shuts out.


These bikes have rev limiters to keep you from blowing the motor. they are supposed to do just that, shut power off if you rev the engine too hard. Usually it cuts out and re-starts very rapidly and you get sort of a Vroom, Vroom , Vroom sound that lets you know you are reving it too much. If you continue to push the motor it will shut power off. 10,000 rpm is a lot of rpm and this could cause major issues with the motor. you don't want a piston to come loose at this rpm!

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2 Answers

Gear problems


now you would have to make sure your clutch is not faulty as if the bike slightly jump while putting it in first gear and cuts off , you most probably have a clutch problem .
this is what you have to try first :
start the bike on while depressing the clutch while in gear and see what happens .
if the bike keeps on running , tension the clutch .
if the bike stall , your clutch could be faulty or your oil could be too ,thick and needs changing .
try this first and let me know how you go

Sep 29, 2009 | 2004 Honda CBR 125 R

1 Answer

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ello m8,,hows things,,clean out the air filter 1st, change all your plugs mr,try that , if nothing u will need to get the carbs balanced to by a bike shop,mechanic,,unless u have carb gauges,,, itl be easier if they do it,, try these 1st m8,, if no joy come back and il go threw step 2 with yuh,,

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Jan 12, 2009 | 2005 Honda CBR 125 R

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