TRX90 - 19mm Nibbi Carb Kit

Nibbi 19mm – TRX90

Upgrade your Honda TRX90 with the TBparts Nibbi 19mm Carburetor Kit—engineered for improved throttle response, smoother power delivery, and reliable performance. This complete package includes our CNC billet red racing intake manifold, custom air box tube, and extended throttle cable, ensuring a precise fit and proper airflow when upgrading from the factory carburetor. The custom TBparts intake tube allows you to retain the stock TRX90 air box while maintaining excellent airflow. Designed specifically for the stock TRX90 cylinder head, the manifold provides proper port matching for a smooth and efficient transition into the intake port.

Key Features:

• Includes extra Pilot jets  #32, 35, 38, 40
• Perfect fit for Honda TRX90
• Intake Manifold: CNC billet aluminum, hard-anodized red, includes gaskets, hardware, and heat stop/spacer, with TBparts logo
• Bolt-on power increase when paired with the Nibbi 19mm carburetor

Installation Notes:

• Must Cap OEM Emissions Vacuum Line for this offroad kit.
• Does not include fuel line – TBparts fuel line part number TBW1103 TBparts 90° barb fittings TBW1867
• Larger aftermarket carburetors do not include a dual-feed petcock:
• You may cap off one of the two fuel lines and run a single feed, or Install an aftermarket dual-feed petcock if preferred.
• Base tune for TRX90s 35/90 –  stock bore
• Base Tune For 114cc TRX90s  38/95