Wossner steel Exhaust valveRef : WO00427A / 1117640

WÖSSNER VKS4005A-EXH - Steel Exhaust Valve

Steel exhaust valve by WÖSSNER, designed for the cylinder heads of Yamaha YZ250F and WRF. This part is intended for motocross and enduro enthusiasts looking for a robust valve for the exhaust circuit of their single-cylinder 4-stroke engine.

Made from steel, this valve aims for durability and reliable operation in demanding conditions (hot engine, high RPMs). It integrates into valve groups and may be offered as part of complete kits including springs depending on the reference.

• Brand: WÖSSNER
• Manufacturer Reference: VKS4005A-EXH
• Usage: Exhaust - Motocross / Enduro

Practical tips: before installation, check the condition of the valve seat, the valve clearance, and the alignment of the guide. Replace the springs if necessary and follow the break-in and adjustment procedures recommended by the manufacturer or your mechanic. Installation is recommended by a technician if you are not equipped.

Notable compatibilities:

• GAS GAS EC 300 F (2015)
• YAMAHA YZ 250 F (CG33) (2013)
• GAS GAS EC 250 F (2015)