WALBRO WT-1048 Big-Bore Tuning Carburetor

With a larger intake volume than the standard carburetor, the Walbro WT-1048 Big Bore carburetor delivers more fuel and air, resulting in more horsepower! This carburetor is an EXCELLENT upgrade for many RC airplanes, helicopters, cars/buggies, and boats. Works well on most Zenoah engines and clones, Specially when tuned!

Significantly outperforms the stock carburetor on Zenoah G290/G320/G260PUM/G290PUM/G300PUM und G320PUM engines. The Walbro WT-1048 high-performance carburetor features dual jet adjustment (independent H = high and L = low), a 15.88 mm bore, and a 12.7 mm venturi. Internally measured for higher fuel flow than, for example, the WT-603, WT-668, WT-990 and WT=1107. Has one connection for the fuel supply, so no primer bulb and no return connection to the fuel tank.

When selecting a tuning version, i.e. with bearings and/or a RVS340 steel shaft, the carburetor is also tested under vacuum and optimally adjusted.

Throttle valve shaft options explanation

• With standard brass throttle valve shaft
• With bearing brass throttle shaft
• With Stainless steel 340 throttle shaft
• With bearing Stainless steel 340 throttle axle, (recommended)

Technical specifications:

• Type: Vacuum
• Bore: Ø15.88 mm
• Ventury: Ø13,5 mm

Standard adjustment:

• Idle screw: 2 turns open
• Lower mixing screw (L): 1 and a quarter turns open
• Upper mixing screw (H): 1 and a quarter turns open

Fits all motors in our range and comparable types.types.