Automotive Parts and Accessories: 1998-2001 Yamaha YZ125 Dirt Bike Top End Engine Rebuild Kit [Bore Size (mm): 53.94 (Stock)] - Namura

Automotive Parts and Accessories: Complete Gasket Kit Set top & bottom end head case base YAMAHA YZ125 YZ 125 1998-2001 - TopEndGaskets

Automotive Parts and Accessories: Wiseco PK1344 54.00 mm 2-Stroke Motorcycle Piston Kit with Top-End Gasket Kit - Wiseco

Automotive Parts and Accessories: 2002-2004 Yamaha YZ125 Dirt Bike Top End Engine Rebuild Kit [Bore Size (mm): 53.94 (Stock)] - Namura

Automotive Parts and Accessories: Athena P400485600116 Top End Gasket Kit - Athena

Automotive Parts and Accessories: Wiseco PK1173 54.00 mm 2-Stroke Motorcycle Piston Kit with Top-End Gasket Kit - Wiseco

Automotive Parts and Accessories: Complete Engine Gasket Kit & Oil Seal Set Yamaha YZ125 1998-2000 PN020019/220026 - Top End Gaskets

Automotive Parts and Accessories: Athena P400485600118 Top End Gasket Kit - Athena

Automotive Parts and Accessories: 2005-2011 Yamaha YZ125 Dirt Bike Top End Engine Rebuild Kit [Bore Size (mm): 53.95 (Stock)] - Namura

Automotive Parts and Accessories: Wiseco PK1348 54.00 mm 2-Stroke Motorcycle Piston Kit with Top-End Gasket Kit - Wiseco

Automotive Parts and Accessories: Centauro Athena Economy Top End Gasket Kit for Yamaha YZ125 YZ 125 1999-2000 - Athena

Automotive Parts and Accessories: Top End Head Gasket Kit YAMAHA YZ125 2002-2004 - TopEndGaskets

Automotive Parts and Accessories: Wiseco (B1001) 15mm x 19mm x 17.3mm Top End Bearing - Wiseco

Automotive Parts and Accessories: Cylinder Works Standard Bore Kit with Hot Rods Complete Crankshaft Bottom End Kit for Yamaha YZ 450F 2010-2013 - Cylinder Works, Hot Rods

Automotive Parts and Accessories: Wiseco PK1571 54.00 mm 2-Stroke Motorcycle Piston Kit with Top-End Gasket Kit - Wiseco

Automotive Parts and Accessories: 1994 Yamaha YZ125 Top End Gasket Kit, Manufacturer: Cometic Gasket, TOP END KIT STD YZ125 94-97 - Cometic Gasket

Automotive Parts and Accessories: Wiseco PK1390 54.00 mm 2-Stroke Motorcycle Piston Kit with Top-End Gasket Kit - Wiseco

Automotive Parts and Accessories: WISECO PISTON PK 02 YZ125 PROLITE 54.0MM PK1191 - Wiseco Piston

Automotive Parts and Accessories: 331232C Carbon Fiber Intake Reed Set Replacement Reeds for Yamaha YZ-125 YZ125 - Colonial Parts

Automotive Parts and Accessories: WISECO PISTON PISTON KIT YZ125 02-04 797M05450 - Wiseco Piston

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Yamaha Yz125 Top End Popular Q&A

Q: How often do you do a top end rebuild on a 04 Yamaha YZ125?
A: When you need to, if you seize it or notice low compression, its time for a rebuild, otherwise ride and enjoy it. When I raced, I would usually get a whole seas... Read More »

Q: What is the top speed of a Yamaha yz125?
A: with stock up to 85mph. Read More »

Q: What is the A 2005 Yamaha YZ125 top speed
A: The YZ125's top speed is between 65 and 70 MPH. It gets that to tha... ...MORE... Read More »

Q: What is the top speed of a 1986 Yamaha YZ125?
A: It has a top speed of 81MPH with a light rider and nice riding Read More »

Q: What is the top speed of a 2000 yamaha yz 125?
A: depends on if it's tricked out, and what rear sprocket is on it. Could be as much as 80. Read More »