WISECO steel Intake Valve for SUZUKI RMZ 250 2007-2027

The WISECO acier WSVK3338-I intake valve is designed for SUZUKI RMZ 250 from 2007 to 2027. The intake valve lets the air-fuel mixture into the chamber, then closes to hold the compression. As a valve wears and sinks into its seat, the valve clearance disappears: the engine starts badly, loses power and the valve eventually stops closing.

Specifications

• Brand: WISECO
• Manufacturer part number: WSVK3338-I
• Sold as a kit (see part number)
• Weight: 450 g
• Engine: 4-stroke

When to replace it?

• Valve clearance closing up from one check to the next.
• Hard hot starting, loss of compression.
• Marked valve face or cupped valve when removed.

As soon as the valve clearance no longer holds between two checks. Always replace the valves on the same side together and have the seats recut.

Fitting tips

1. Have the valve seats recut and check the guides.
2. Fit new valve stem seals and check the springs.
3. Set the valve clearance with valve shims if needed, then check it again after the first few hours.
4. Refit with a valve cover gasket in good condition.

Why WISECO?

Based in Mentor, Ohio, Wiseco designs, forges and machines its parts in the United States. Pistons, valves and clutch parts: the brand is known for forged parts built for hard-working engines.

Spare parts and items to plan

• Valve stem seals : ATHENA P400210420752 · ATHENA M739000ML0720
• Valve shims : PROX · HOT CAMS
• Valve cover gasket : ATHENA S410510015042 · ATHENA S410250015039

Frequently asked questions

Do both valves need replacing?
Yes, intake valves are usually replaced as a pair to keep the engine running evenly.

Titanium or steel?
Steel is more tolerant of wear and is perfectly suited to leisure riding; titanium, which is lighter, is the original choice in many motocross engines. Follow the manufacturer's recommendations for the springs.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
SUZUKI RMZ 250 2027
SUZUKI RMZ 250 2026
SUZUKI RMZ 250 2025
SUZUKI RMZ 250 2024
SUZUKI RMZ 250 2023
SUZUKI RMZ 250 2022
SUZUKI RMZ 250 2021
SUZUKI RMZ 250 2020
SUZUKI RMZ 250 2019
SUZUKI RMZ 250 2018
SUZUKI RMZ 250 2017
SUZUKI RMZ 250 2016
SUZUKI RMZ 250 2015
SUZUKI RMZ 250 2014
SUZUKI RMZ 250 2013
SUZUKI RMZ 250 2012
SUZUKI RMZ 250 2011
SUZUKI RMZ 250 2010
SUZUKI RMZ 250 2009
SUZUKI RMZ 250 2008
SUZUKI RMZ 250 2007