Flywheel Removal - Honda CBR125R Owner's Manual

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FLYWHEEL REMOVAL

Remove the left crankcase cover (page 11-4).
Hold the flywheel with a special tool and remove
the flywheel nut and washer.
TOOL:
Flywheel holder
Remove the flywheel using a special tool.
TOOL:
Flywheel puller, 30mm
Remove the collar, starter reduction gear and shaft.
Check the starter reduction gear and shaft for wear
or damage.
ALTERNATOR/STARTER CLUTCH
FLYWHEEL HOLDER
07725-0040001
FLYWHEEL PULLER
07KMC-HE00100
FLYWHEEL
COLLAR
SHAFT
REDUCTION GEAR
NUT/ WASHER
REDUCTION GEAR
SHAFT
11-7

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Questions and answers

Steven young
April 7, 2025

Hey guys I have oil dripping from crankcase overflow, very minimal, doesn’t happen on idle only when been riding for a while, I’ve done an oil change and correct amount of oil displayed on dipstick when warm, what could be the issue/options

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1 comments:
Mr. Anderson
April 9, 2025

Oil dripping from the crankcase overflow on a Honda CBR125R after riding for a while could be caused by:

1. Overfilled engine oil – too much oil can increase pressure and cause overflow.
2. Clogged or dirty oil strainer screen – this can restrict oil flow and increase internal pressure.
3. Damaged or worn sealing rubber on the oil strainer screen – may cause leaks.
4. Oil leaks not properly fixed – such as from the crankcase cover or other seals.

Check oil level, clean the strainer screen, inspect seals, and ensure proper installation.

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Traydon Thursting
April 13, 2025

Hello there, my name is Traydon I have been riding for about 2 months now I’m completely new to keeping motorbikes Recently I’ve had an issue with my motorbike it’s a Honda cbr 125cc 2011 model. I have an idle problem will start but struggles to keep idle and have to keep using the throttle from it not cutting out it also cuts out at traffic lights due to not liking to stop Revving. Tray.

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1 comments:
Mr. Anderson
April 13, 2025

The idle problem in a 2011 Honda CBR125R that struggles to maintain idle and cuts out at traffic lights could be caused by an issue with the air cut valve or air cut system in the carburetor. Even after a carb rebuild with new jets and seals, the problem persisted until attention was given to this specific component. A faulty or malfunctioning air cut valve can cause over-revving, poor idling, and stalling when coming to a stop.

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