Alternative: Walbro 603B also with choke. But with better manufacturing quality!

The Walbro WT668B carburetor fits all Zenoah, Chung Yang (CY), Losi, HPI und PT (Smartech/Carson) engines from 23cc up to over 30cc.

The Walbro WT668B features an integrated choke with lever and a throttle shaft linkage lever.

The WT668B is also available with ball-raced throttle shaft under part number # y0036/04 Ballraced tuning Walbro WT668B carburetor

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y0036/04 Ballraced tuning Walbro WT668B carburetor

With dual ball bearings on the throttle shaft. Two sealed bearings 2RS type (3/16" x 5/16" x 1/8") shielded by two steel plates (5 x 8 x 0.3 mm). High quality processed and optimized for racing use! The soft stock screw holding the throttle lever has been replaced with a high strength Allen key screw. Since all screws on the carb are imperial sized, so is the key for this screw. A corresponding bit is included in our tool set y0785, or you can use Allen key wrench y0037/03 as well.

The Walbro WT668B carburetor fits all Zenoah, Chung Yang (CY), Losi, HPI und PT (Smartech/Carson) engines from 23cc up to over 30cc.

The modified Walbro WT668B features an integrated choke with lever and a throttle shaft linkage lever.



The Walbro WT668B carburetor is also available in a standard version under part number # y1067 Walbro WT668B carburetor.