The auto choke solenoid valve gives several benefits: 

Controls amount of fuel depending on the engine temperature. 

No choke lever activation is required. 

Engine start with primary pump and recoil starter gets to work faster. 

Automated system ensures optimal fuel supply and no risk of carburetor flooding. 

The CS-3510AC is packed with features for ease of use and comfort:

Momentary switch for quick and easy engine restart. 

ES-Start for reduced effort starting. 

Transparent fuel tank for easy level checks. 

Side access chain tensioner for quick chain adjustment. 

Automatic clutch-driven oiler to keep chain lubricated and to hold chain oil discharge while idling. 

G-force Engine Air Pre-Cleaner reduces engine exposure to dirt and debris for less maintenance and longer life. 

Icing plug for improved acceleration in cold conditions. 

Roller style chain catcher. 

The CS-3510AC is slim and light weight for ultimate maneuverability. The powerful 34.4cm³ engine means you will power through jobs effortlessly.