94-01 Yamaha YZ125 Cylinder Inspection - REAL TIME |

This is how to Inspect your 1994 - 2001 Yamaha YZ125 Cylinder.
For this service, you will need a new top-end gasket set, which you can buy here:

Top End Gasket Set → https://amzn.to/4hlHG0D

Point-to-Point Cylinder Head Inspection Video →    • 1994 - 2001 Yamaha YZ125 Cylinder INSPECTI...  
Full Top End Service Video →    • 1994 - 2001 Yamaha YZ125 Top End Rebuild -...  

Complete Walkthrough on FixYourDirtBike.com → https://bit.ly/3LBGH0z
Top End Specifications Chart → https://bit.ly/3KXxQ95

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The Tools You Will Need To Service Your Yamaha YZ125 Cylinder:
Safety Glasses → https://bulltru.com
Dremel with Sanding Disc → https://amzn.to/407t6l3
2-Stroke Oil → https://amzn.to/3WnyXSl
Calipers → https://amzn.to/3BRoCXX
Brake Cleaner → https://amzn.to/4jv9v7a
Telescoping Bore Gauges → https://amzn.to/4g5reiE
Feeler Gauge → https://amzn.to/4hd7qen
Cylinder Brush → https://amzn.to/3W7Trhv

The Specialty Tools You Will Need Are:
Machinists Straight Edge → https://amzn.to/4g4fSM1

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1994 - 2001 Yamaha YZ125 - Top End - Service Steps:
Individual Steps:

– Removal –
1 - Cylinder Head Removal →    • 94-01 Yamaha YZ125 Cylinder Head REMOVAL |...  
2 - Cylinder Removal →    • 1994 - 2001 Yamaha YZ125 Cylinder REMOVAL ...  
3 - Piston Removal →    • 1994 - 2001 Yamaha YZ125 Piston REMOVAL | ...  
4 - Exhaust Valve Removal →    • 1994 - 2001 Yamaha YZ125 Exhaust Valve REM...  

– Inspection –
5 - Cylinder Head Inspection →    • 1994 - 2001 Yamaha YZ125 Cylinder Head INS...  
6 - Cylinder Inspection →    • 1994 - 2001 Yamaha YZ125 Cylinder INSPECTI...  
7 - Piston Inspection →    • 1994 - 2001 Yamaha YZ125 Piston INSPECTION...  

– Install –
8 - Exhaust Valve Installation →    • 1994 - 2001 Yamaha YZ125 Exhaust Valve INS...  
9 - Piston Installation →    • 1994 - 2001 Yamaha YZ125 Piston INSTALL | ...  
10 - Cylinder Installation →    • 1994 - 2001 Yamaha YZ125 Cylinder INSTALL ...  
11 - Cylinder Head Installation →    • 1994 - 2001 Yamaha YZ125 Cylinder Head INS...  

– Governor –
12 - Exhaust Valve Governor →    • 1994 - 2001 Yamaha YZ125 Exhaust Valve Gov...  
13 - Exhaust Valve Governor Installation →    • 1994 - 2001 Yamaha YZ125 Exhaust Valve Gov...  

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1994 - 2001 Yamaha YZ125 Cylinder Torque Specifications:

Cylinder Base Nuts: 21 ft-Lbs

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00:00 - Intro
00:28 - Clean Surfaces
00:51 - Deglaze Cylinder
10:51 - Inspect Cylinder For Damage
16:02 - Inspect For Warp
17:16 - Measure Cylinder Bore
27:24 - Clean & Dry
29:03 - Clearance Calculations

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