BUHNSS Aluminum Flywheel for Predator 212–224cc Non‑Hemi, 22lb Spring Kit — High‑RPM Cooling & Improved Rev Response

BUHNSS Aluminum Flywheel with 22lb spring kit is a performance-focused replacement that raises rev ceiling and improves cooling for Predator 160–224cc and compatible clone engines.

If you're rebuilding, upgrading, or replacing the ignition and rotating assembly on a small horizontal shaft engine such as Predator 212cc/224cc or similar clones, this kit supplies a die-cast aluminum flywheel, a high-performance 22lb spring set and a spark plug to help the engine reach higher rpm while shedding heat more effectively. It fits a range of non-hemi models and includes features intended to improve balance, cooling, and ignition timing without complex machining.

Will this flywheel fit my engine model and carburetor setup?

The BUHNSS flywheel is designed for many common clone and OEM blocks. It lists fitment for Predator 160cc through 224cc non-hemi engines and common gx200-style clones. Confirm bolt pattern, keyway and crank diameter before ordering to ensure compatibility.

• Compatible with many Predator 160–224cc non-hemi engines and gx200-style clones
• Includes a puller hole pattern to remove the flywheel with standard pullers
• Check crank shaft diameter, taper/key location, and bolt spacing for exact fit
• Not intended for hemi-design motors — verify engine casting code if unsure

How does the aluminum construction affect performance and cooling?

This flywheel is die-cast from aluminum and features integrated fan blades to move more air around the cylinder head. Aluminum reduces rotating mass compared with many cast-iron options, which helps the engine accelerate faster and reach higher rpm, while the fan blades improve heat dissipation during operation.

• Die-cast aluminum lowers inertia for quicker rev response
• Built-in fan blades increase airflow to assist cylinder cooling
• Dynamic balance holes and balancing treatment reduce vibration at high RPMs
• Single-molding design aims for consistent tolerances and fewer defects

What effect do the 22lb springs and built-in timing advance have?

The included 22lb spring kit is intended to allow the centrifugal advance to engage later and hold at higher rpm ranges, enabling stable operation above 7000 RPM in suitable engines. The flywheel also incorporates an 8° built-in advance to bring timing closer to 32° TDC, which can sharpen throttle response when matched with proper carburetion and exhaust.

• 22lb springs provide stronger centrifugal engagement for high-rpm stability
• Springs are subject to length and rate tolerance variation between units
• 8° built-in advance shifts ignition timing toward ~32° TDC for crisper response
• Best paired with tuned fuel and exhaust for safe, reliable performance gains

What comes in the package and what installation tools are recommended?

The kit ships with one aluminum flywheel, one spark plug and a 22lb spring set. Because it includes a puller hole and features dynamic balancing, standard small-engine hand tools plus a quality flywheel puller and torque wrench are recommended for safe installation and proper seating.

• Package includes flywheel, spark plug, and 22lb springs
• Use a flywheel puller and protective gear for removal and installation
• Torque the flywheel nut to manufacturer spec and verify timing after install
• Inspect key/keyway and threads for damage before assembly

Who is this for: This BUHNSS aluminum flywheel and 22lb spring kit suits hobbyists, racers and small-engine tuners who want a higher rev limit, improved cooling and refined balance on Predator-style or gx200-clone 160–224cc non-hemi engines. It is ideal for go-karts, mini-bikes, pressure washers, generators or rebuild projects where stronger centrifugal advance and lower rotating mass are desired; however, buyers should verify physical fitment and be comfortable with basic engine timing and installation procedures.