The Wallbro WT-813A Big Bore Carburetor features independent tunable high and low speed jets, as well as a modified throttle shaft pre-installed for maximum compatibility. This carb is recommended by Zenoah for engine upgrades. Unlike stock carbs, which tend to experience lags in low-end acceleration upon peak power tuning, the WT-813A includes an integrated acceleration pump to allow faster recovery as the throttle increases.
- Venturi bore diameter: 12.7mm
- Throttle Bore: 15.88mm
- Primer Bulb: Yes
- Mounting hole distance between centers: 31mm
- Accelerator System: Yes