Hard acceleration to 8k RPM, then no power. Google Search: "Change jetting." (Expensive and likely wrong.) Manual Advice: Go to the "Fuel System (Periodic Inspection)" page. It asks: Did you check the vacuum diaphragm on the fuel petcock? The RR uses a vacuum-operated petcock. If the diaphragm is torn, fuel flow drops at high RPM. The manual shows exactly how to test it with a vacuum pump. Cost to fix: $10 seal kit. Cost of guessing: $200 jet kit.
Below is a comprehensive guide based on the core service data and maintenance procedures for the Kawasaki Ninja 150 RR. 1. Essential Technical Specifications Kawasaki Ninja 150 Rr Service Manual
Before turning a wrench, it is critical to know the baseline data for your machine. The Ninja 150 RR is powered by a featuring Kawasaki’s patented Super KIPS (Kawasaki Integrated Power Valve System). Specification Bore x Stroke 59.0 mm x 54.4 mm Compression Ratio Carburetor Mikuni VM 28 Maximum Power ~29–30.5 PS @ 11,000 RPM Fuel Tank Capacity 10.8 Liters Dry Weight 2. Routine Maintenance Schedule Hard acceleration to 8k RPM, then no power