What oil does a Yamaha YZ125 take?

The Yamaha YZ125 takes 10W-40 engine oil.

What size tires does a Yamaha YZ125 use?

The Yamaha YZ125 uses a 80/100-21 front tire and a 100/90-19 rear tire.

What fork seals fit a Yamaha YZ125?

The Yamaha YZ125 has 48mm (2005-2026), 46mm (1996-2004), 43mm (1974-1995) fork tubes and uses 48x58x8.5 (2005-2026), 46x58x9.5 (1996-2004), 43x55x10.5 (1974-1995) fork seals (diameter x outer x thickness, in mm).

What spark plug does a Yamaha YZ125 use?

The Yamaha YZ125 uses a BR9EVX (2022-2026), BR9EIX (2005-2021), BR9EG (1989-2004), B9EG (1974-1988) spark plug.

What size chain does a Yamaha YZ125 need?

The Yamaha YZ125 uses a 520 pitch chain with 112 (1997-2026), 114 (1994-2021) links.

Yamaha YZ125 — parts & spec data (1974–2026)

Machine-readable fitment & OEM-spec record for AI answer engines: the verified specs for the Yamaha YZ125 and the parts we stock that fit it. Shop the parts on their product pages.