Yamaha R9 (2025+)
Fluid capacities, consumables, drivetrain, tire pressure & wear limits
The Yamaha R9 (2025+) takes 3.2 L of oil with a filter change (2.8 L without).
Fluid Capacities
Oil capacity (with filter)3.2 L
Oil capacity (without filter)2.8 L
Oil capacity (dry fill)3.5 L
Coolant (radiator)1.78 LPlus 0.28 L in the coolant reservoir (up to the maximum level mark)
Consumables
Engine oil gradeYAMALUBE SAE 10W-40, API service SG type or higher, JASO standard MA
Coolant typeYamaha genuine coolant or high-quality ethylene glycol antifreeze containing corrosion inhibitors for aluminum engines, premix 50/50
Oil filter (OEM)Not listed by part number in the extracted manual text
Air filter (OEM)Not listed by part number in the extracted manual text
Spark plug (OEM)NGK LMAR9A-9
Front brake pads (OEM)Not listed by part number in the extracted manual text
Rear brake pads (OEM)Not listed by part number in the extracted manual text
Drive chain525 pitch, sealed type, 110 links
Clutch free play5–10 mm
Drivetrain
Chain size525
Chain links110
Chain slack35–40 mm
Drive Chain Slack Limit45 mm
Chain 15-link limit239.3 mm
Front sprocket (OEM)16TDerived from the secondary reduction ratio 2.688 (43/16) — tooth counts aren't printed as a standalone spec
Rear sprocket (OEM)43TDerived from the secondary reduction ratio 2.688 (43/16) — tooth counts aren't printed as a standalone spec
Brakes & Tires
Front tire size120/70ZR17M/C (58W)Bridgestone Battlax Racing Street RS11F
Rear tire size180/55ZR17M/C (73W)Bridgestone Battlax Racing Street RS11R
Front tire pressure250 kPa
Rear tire pressure250 kPaSame pressure for 1 or 2 riders
Brake fluid typeDOT 4
Wear Limits
Front brake disc (min)4 mm
Rear brake disc (min)4.5 mm
Brake pad — front (min)1 mm
Brake pad — rear (min)1 mm
Clutch friction plate (min)2.82 mmApplies to both friction plate 1 (6 pcs) and friction plate 2 (3 pcs) — standard thickness 2.92-3.08mm for both
Drive chain slack (limit)45 mm