I believe Yamaha came out with oil injection. You do not mix the oil with the gasoline - the oil is in its own reservoir and mixes automatically.
the motor 2x8-000880 is a 1979 IT 400 Yamaha
2Y9 Prefix on the Yamaha DT 400 frame and Engine No: is the 1979 Model that shipped to Canada and South Africa. Also known as the DT400F. It's most common colour was Competition Yellow for 1979
What is the OEM rear end gear ratio on a 1979 ford F-150 400 9-inch rear end?
how do you know if your yamaha atv is a 400 or a 450
400 cc Yamaha engine
Try one off of a yamaha seca 400
What is the valve clearance for a 2002 yamaha kodiak 400 4x4?
No.Southwest cycle in cape coral Florida gave you the wrong part.They are not to bright and I would never let them work on my bike.
i need to buy a service manual for a 1982 yamaha maxim 400
with the newer semi/synthetic oils mix at about 32:1 to 40:1 anywhere between these two is a safe ratio.
Maxim 400
The SF-400 was built in Japan.