Description

Yamaha V125 Parts Catalog – OEM Factory Part Numbers in 55 Pages

A guy came in last week with a V125 that had a bottom-end knock. He’d already ordered a piston ring set from some third-party website – wrong size, wrong material, wrong part number. He wasted two days and sixty bucks. That’s what happens when you trust aftermarket parts lists. The Yamaha V125 Parts Catalog (55 pages, OEM, no reprints) gives you the exact factory reference numbers for every piece on that bike. Cylinder head? Page 1. Crankshaft assembly? Page 2. You don’t guess – you look it up.

Cylinder and Crankshaft – What You See on Pages 1-2

Page 1 has the cylinder and head assembly. Figure 1 shows the head, cover, spark plug (NGK B8ES), stud bolts, and crown nuts with their Yamaha part numbers. Page 2 covers the crankshaft and piston group – part numbers for the connecting rod, bearing, piston rings. If you’re rebuilding the top end, you need these specific references. Aftermarket catalogs often merge years or delete sub-variants. This catalog separates the 5XK1 Malaysian model from others. The Engine section runs from page 1 through 17, covering everything from the oil pump (page 4) to the shift shaft (page 17). You want the intake or carburetor? Pages 5-6. No fluff, no generic sketches – just the exploded diagram with numbered callouts and a parts table.

7 Chassis Subsystems You Can Order Parts For

The chassis section starts at page 18 (Frame) and goes all the way to page 42 (Rear Master Cylinder). That’s 25 pages of part numbers for steering, front fork (page 26), fuel tank (27), seat (28), wheels (spoke and cast, separate pages), brake calipers, handle cables, master cylinders, and the stand & footrest. Each subsystem has its own figure. You want the front brake caliper for a cast wheel model? Go to page 31. The rear brake caliper? Page 36. The diagrams also show which bolts, washers, and seals belong where – critical when you’re tearing down a 20-year-old bike and the hardware is corroded.

Why a Factory Parts Catalog Beats Aftermarket Diagrams

I’ve seen aftermarket catalogs that combine the V125 with the V110 or miss a screw because the layout changed in a later production run. That costs you time and money. Yamaha’s own Parts Catalog for the V125 (5XK1, Malaysia) is the document the dealer’s parts counter uses. The numerical index on page 53 lets you cross-reference a part number if you find a piece with a worn label. The product number 1B5XK-440E1 confirms this is the official release. When you Automotive Industry Overview”>understand the automotive supply chain, you know that factory parts catalogs are updated with engineering changes – aftermarket reprints never are.

Carburetor and Intake – Which Pages to Check

Intake is on page 5, carburetor on page 6. Each shows the gaskets, jets, and throttle linkage parts. If your V125 has a hesitating idle or a flat spot, you may need a new pilot jet or diaphragm. The catalog gives you the exact part number – not a cross-reference to a universal jet. Order the wrong one and your carb runs lean from the start. The same applies to the exhaust section (page 8) and crankcase (page 9). Every bolt and gasket is listed. No shortcuts.

55 Pages – That’s All It Takes to Get the Right Part

That’s the whole document – 55 pages covering engine, chassis, electrical, and the numerical index. Electrical 1 starts on page 51 (generator, flasher light, meter, headlight, taillight). Electrical 2 on page 52 likely covers the CDI and harness. The Internal Combustion Engine”>internal combustion engine section alone accounts for 17 pages. For a home garage mechanic, this catalog is your parts ordering bible. You can also pair it with related manuals from our site: Yamaha YZF-R1 2002 Parts Catalog – OEM Factory Part Numbers”>Yamaha YZF-R1 2002 Parts Catalog, Yamaha GTS1000AE 1993 Parts Catalog – Factory Microfiche PDF”>Yamaha GTS1000AE 1993 Parts Catalog, or Yamaha T150 Jupiter MX-King 2015 Parts Catalog”>Yamaha T150 Jupiter MX-King 2015 Parts Catalog if you work on other models.

Before You Order – Understand the Numerical Index

Page 53 lists all part numbers in numerical order with references back to the figure pages. If you pull a used part and see a number stamped on it, you can find it in the index and know exactly which assembly it belongs to. That’s how professional shops avoid ordering duplicates. Use the catalog to verify before you click “buy”.

FAQ

Can I use this catalog to rebuild my engine?

Yes, if you need OEM part numbers for the cylinder, crankshaft, and piston.

Does the catalog include torque specs or repair procedures?

No – this is a parts catalog, not a service manual. It does not provide torque values, removal steps, or diagnostic procedures. It lists every factory part number with exploded diagrams. For example, page 1 shows the cylinder head gasket and stud bolt part numbers, but you won’t find the cylinder head torque sequence here. You’ll need a separate Yamaha V125 service manual for that. However, if you’re ordering a gasket set or piston rings, this catalog ensures you get the exact pieces that match your V125’s 5XK1 engine. The electrical sections on pages 51-52 show the generator and flasher light assemblies – again, part numbers only, not wiring diagrams. Use this alongside a factory service manual for complete rebuild guidance.

If you’re working on a V125, get the right parts the first time. Stop guessing with aftermarket lists. Access the Factory Manual now from AutoRepairManuals.