Carburetor adjustment Yamaha Zinger 4

SOURCE: carburetor adjustments yamaha 450yfz 2004

Turn both the air screw and throttle screw inward until they LIGHTLY seat. Now back each one outward one and one half turns. This is the factory setting. I am going to give you a web site where you can download a free PDF factory service manual for a YZ450FR. I believe the model is a bit different but the carbs are the same.

Go to this site and you can download a free PDF service manual. The site may take up to 25 seconds to fully load the list of manuals. It is worth the wait. www.carlsalter.com/motorcycle-manuals.asp The service procedures are there in detail and a lot of diagrams and photos. Don't mess with the pilot screw unless you have to, Part #11 in the diagram.
Can I get a Very Helpful" rating out of this?

SOURCE: i have a 1986 yamaha

Refer to the diagram
1 - Overflow drain pipe
2 - Fuel supply(Larger diameter than oil supply line)
3 - Oil supply
4 - Air box
A - Pin for the throttle valve groove. Align the groove in the valve with this pin.
B - Choke valve



Should require further assistance please leave a comment.

SOURCE: I have a 1987 Yamaha Moto 4. I adjusted the valves and clean the carburetor and now it's back firing out of the carburetor

did you adjust the valves correctly

Testimonial: "Yes I adjusted them to what the specs called for. It'll"