Register

Thanks for shopping with HyoRiders!  – As promised for your 125RC/125P Carby Stator Order, here are the installation instructions to ensure your process goes as smoothly as possible.

You will see pictures below in “order” , such as 1 , 2 , 3A,  3B,  4 , 5 , 6A,  6B, 6C, etc…  So please take your time and follow them carefully because changing a flywheel of a motorcycle is a serious job and if something goes wrong, you may lose your crank.  We can’t accept responsibilities for that, so if you’re confident in doing this, then please allow a Garage/Mechanic to do if for you instead and give them this tutorial.

If you get stuck,  send us an email and explain which picture is confusing , for example  Step 1, to 5 went great in pictures, but you are confused with Picture #6, so please tell us that you’re stuck at picture #6, etc…


Okay, here we go!…  THIS IS A DRAFT COPY.  So some pictures will be missing “english text to explain things” , but don’t panic, follow the pictures, also the text below is rough, so i will edit it again soon. 🤐Apologies for any imperfections you see below!

TOOLS TO GET.
Get tools *14,  15 , 17 , 30/32 sockets n spanners, mole grip and torque wrench.
Do NOT attempt to install a flywheel without a torque wrench. it is required.

FRESH OIL AND FILTER NOTES:

Fresh oil.  DO NOT bother using old oil on new crank parts.  No matter who tells you. Just be safe than sorry.   And recommended oils are: Motul 7100, Motul 300v, Silkolene Pro 4, Silkolene Comp 4
Forget other brands.
Use 10w40 or  10w50 if it is summer time.
Do NOT use  20w (it is too thick!)
Do NOT use 5w (it is too thin & you will kill the motor)
IF IN DOUBT. STICK WITH 10w40 forever.

Replace the oil filter too,  we sell them here (click)

TORQUE SETTINGS:
45 to 60 FT LBS = FLYWHEEL CENTER BIG NUT

7 FT LBS MAX! = OUTSIDE STATOR CASING SCREWS

5FT LBS MAX! = INSIDE GREEN MAGNETO SKINNY BOLTS (SILVER)
15 FT LBS MAX! = SPRAG CLUTCH BOLTS (Black 3x Bolts) Sprag Clutch is the little clutch that sits behind the flywheel.

IF YOU GET A 2004 FLYWHEEL WITHOUT A SPRAG CLUTCH. THIS MEANS YOU MUST USE YOUR OLD SPRAG-CLUTCH ON TO THE NEW FLYWHEEL AND WE WILL SUPPLY FRESH 3x NEW BLACK BOLTS FOR IT.

IF YOU DO NOT TIGHTEN THE SPRAG CLUTCH PROPERLY. YOU WILL 100% HAVE STARTING ISSUES!  PLEASE DO NOT RUSH!




Here is the picture-based instructions.