✨ Product Description
Performance PHBH 28 carburetor replicating Dellorto original structure, compatible with Yamaha TZR, Piaggio scooters, go-karts, ATV and UTV 4-stroke vehicles, OEM part reference R3311 / R3488. Precision cast aluminum main body with fully adjustable idle speed, fuel needle and air-fuel mixture screw. Large bore air intake boosts air flow for stronger high RPM power delivery. Ideal aftermarket upgrade to replace stock carburetors for off-road, karting and scooter performance modification.
🔧 Key SpecificationsModel: PHBH 28mm bore size optional
Construction: Die-cast aluminum carb body + plastic float chamber
Adjustable Parts: Idle screw, fuel mixture screw, jet needle
Compatible Equipment: Yamaha TZR, Piaggio, Go Kart, ATV, UTV, 4-stroke quad bikes
Core Function: Optimize fuel & air mixing, improve throttle response, upgrade engine horsepower🚀 Core Product AdvantagesDellorto PHBH Replica Design: Direct fit for stock mounting positions without frame modification
Full Adjustable Fuel System: Fine-tune air-fuel ratio for low-speed torque and high-speed power
Large Diameter Air Inlet: Increase intake volume for faster throttle response and stronger acceleration
Wear-Resistant Precision Internal Jets: Stable fuel supply, avoid lean/rich mixture faults
Wide Universal Fit: Works for scooters, racing karts, quad ATVs and small-displacement 4T motorcycles
Sealed Float Chamber: Prevent fuel leakage during off-road bumpy riding📦Package Includes
1 x PHBH 28 carburetor (no extra jets included)⚠️ Important NotesSize Confirmation: Select 28mm bore according to your engine displacement before ordering.
Tuning Tip: Adjust fuel mixture screw after installation to eliminate hesitation, backfire or hard starting issues.
Fitment Reminder: Confirm your vehicle intake manifold matches PHBH flange size to guarantee installation.
