Chimera Tool-Free Thumb Screw Idle Adjuster with Spring – Honda Grom 125 & Kawasaki Z125

Dial In Your Idle Without Tools – Chimera Thumb Screw Idle Adjuster

Stop fumbling for a screwdriver every time you need to adjust your idle. The Chimera Tool-Free Thumb Screw Idle Adjuster is a simple, precision-machined upgrade for your Honda Grom 125 or Kawasaki Z125 that puts idle control at your fingertips — literally.

Whether you're a stunt rider who needs quick idle changes between sessions, or you're tuning a big bore build that demands precise idle calibration, this thumb screw and spring combo makes the job fast and tool-free.

Key Benefits

• Adjust idle speed instantly — no tools required
• Perfect for stunt riders and big bore engine builds
• Direct replacement for the factory throttle body screw and nut
• Includes spring for smooth, consistent adjustment
• Made in the USA by Chimera Engineering

Installation

Remove the plastic cover on your throttle body, then swap out the stock screw and nut for the Chimera thumb screw and spring. No drilling, no cutting — straightforward bolt-on fitment.

Fitment

• Honda Grom 125 (SF / OG / JC92)
• Kawasaki Z125
• Honda Monkey (2022+, 1st Gen)