90790-BS211-BT Yamaha 2 Stroke TCW3 4L | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamalube 2C TC-W3 Two-Stroke Outboard Oil - Part Number: 90790-BS211-BT

Genuine Yamalube mineral-based two-stroke marine engine oil supplied in a four-litre container.

The ashless detergent formulation is designed for Yamaha oil-injected and premix two-stroke outboards, providing piston, ring, bearing and cylinder lubrication while controlling deposits and corrosion.

⚙️ Key Features

• Genuine Yamalube two-stroke marine engine oil
• Correct Yamaha part number 90790-BS211-BT
• NMMA TC-W3 marine lubricant specification
• Suitable for premix and oil-injection systems
• Supplied in a four-litre container

🚤 Compatibility

Commonly used on

• Yamaha oil-injected two-stroke outboards
• Yamaha premix two-stroke outboards
• Yamaha Precision Blend lubrication systems

Typically suits

• Engine types:
• Yamaha portable two-stroke outboards
• Yamaha mid-range two-stroke outboards
• Yamaha V4 and V6 carburetted two-strokes
• Yamaha EFI two-stroke outboards
• Yamaha oil-injected engines requiring TC-W3 lubricant
• Premix engines using the fuel-to-oil ratio stated in the owner's manual
• Product Type: TC-W3 marine two-stroke oil
• Container Size: 4 litres
• Mixing Method: Oil injection or premix as specified by Yamaha.

🔌 Function

The oil lubricates pistons, rings, crankshaft bearings and cylinder surfaces while reducing deposits and protecting internal metals from corrosion.

⚠️ Common Signs of Failure

Common signs unsuitable or degraded oil is being used

• Excessive exhaust smoke
• Heavy carbon accumulation
• Spark-plug fouling
• Piston or ring wear
• Oil-injection system contamination caused by mixed lubricant types

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 90790-BS211-BT current Australian Yamalube 2C four-litre package reference

OEM / Related Numbers

• 90790-BS211-BT
• Yamalube 2C
• Yamalube two-stroke TC-W3
• Four-litre marine two-stroke oil

Aftermarket / Verified Equivalents

• TC-W3-certified marine two-stroke oil meeting Yamaha's specified lubricant requirement
• Quicksilver Premium Plus TC-W3 marine oil
• Sierra Premium TC-W3 two-stroke marine oil

📦 Condition

• Genuine Yamaha product
• Brand new
• Supplied in original packaging