Description
Boost the breathing ability of your Kawasaki 750 or 800 with the R&D Reed Valve Spacer Kit – a favorite upgrade among stand-up riders looking for quicker response and more aggressive power delivery. This precision-molded spacer increases the volume and velocity of air reaching the reeds giving your engine a noticeable kick in low-end torque and smoother power across the rev range.
Main Performance Gains
- Substantial improvement in low-speed air velocity – sharper throttle response right off idle
- Internal wing design funnels air faster through the reed cage for better overall efficiency
- Drop-in bolt-on fit with no modifications needed – installs in under an hour
- Works perfectly with both stock OEM and R&D intake manifolds
Many 750/800 owners say this kit makes the ski feel reborn: harder launches stronger mid-range pull for wheelies and turns and a cleaner top-end rush. It is especially effective on modified engines where stock intake restriction holds back potential. The added air volume helps the engine rev more freely without bogging.
Durability & Real-World Reliability
R&D crafts this spacer from high-temp fuel-resistant material built to handle constant vibration heat and saltwater exposure. It is not just a spacer – it is engineered for long-term performance in demanding freestyle and racing conditions.
- Reduces reed flutter and improves sealing for consistent power
- Simple install using basic tools – great for garage tuners
- Ideal first step before carbs pipes or porting work
- Maintains crisp feel even during long ride sessions
Whether you are hitting the surf racing closed course or just carving hard this kit transforms how your Kawasaki responds to every twist of the throttle. It is one of the highest-value mods for these classic stand-ups.
Install & Tuning Tips
Remove the reed cage assembly clean surfaces insert the spacer and reassemble with even torque. Inspect reeds while you are in there – fresh petals can multiply the gains. Pair with high-flow carbs or an aftermarket pipe for even bigger results.
Unlock sharper more eager performance on your Kawasaki 750/800 with this proven R&D Reed Valve Spacer Kit.







