The simplest way to power up your engine! 

The WKY-33 is well recognized as the best carby for marine gas engines up to 35cc because it allows a greater airflow through the venturi by using a barrel-type throttle rather than the butterfly type of the Walbro WT-series carbies. However, its different throttle linkage is not that easy to operate, and so it has not been as widely used as its performance potential would recommend. 

Now though, Arrow Shark has overcome this long-standing challenge! After months of development, testing and modifications, we can announce our exclusive design of a rotated carburetor block combined with a special CNC throttle adaptor for the WYK-33. We have made the throttle linkage much easier to install and link to your servo. As well, we have developed a modification for the WYK-33 to bring its performance to a new high; both the carburetor body and the barrel have been CNC machined to be 15.85mm in diameter with a CNC radius-entry that increases the airflow by 30%. Further still, we have reset the pop-off pressure for the incoming gas, and a straight pulse nipple has been installed on the Pro-Mod WYK-33 for connection, with the supplied yellow pulse line, to another nipple (also supplied) that you need to fit to your crankcase. This line provides the pressure pulses for pumping up the gas from your tank. Finally, we have installed another 90 degree fuel nipple on the carby for easier connection to your gas tank. This full mod Walbro WYK-33 kit will suit all brands of 26cc-35cc marine engines available in the market that has similar intake port shape as standard Zenoah marine engine, and it is suitable for both stock and modified engines.