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  • Modified Walbro WT-990 Carburettor High Performance with Throttl 1
  • Modified Walbro WT-990 Carburettor High Performance with Throttl 2

WT-990 carburettors have been custom modified with high quality rubber-sealed bearings on each side of the throttle shaft. This mod helps with keeping sand and fine dust from entering via the shaft area via the weakest part, the carb shaft.  When it enters it can gum up the shaft so that it binds, sticks open and in turn wears the carb shaft so it creates an air leak.  This mod stops 99% of dust and sand from entering the carb making the carb basically maintenance free. 

 This is the carburettor recommended by Zenoah for upgrading your RC-style engine. Engines with the standard carburettor (WT-603, WT-668, etc) tend to experience a lag in low-end acceleration when tuned for peak power. Carburettor specs: Walbro WT-990. 15.88mm bore, 12.7mm venturi, independent tuneable high and low speed jets. This carburettor does not have an internal choke. 
Note: This carburettor now comes standard with modified throttle shaft, so it will work perfectly in most R/C applications such as HPI Baja, Losi PRC KM Rovan  FG Modellsport, etc.

The WT-990 Carburettor is the same as the WT-813 WITHOUT an internal acceleration pump.

Fits all Zenoah, CY, and PRC  2 stroke Petrol Engines

 

  

For more information, please visit this products webpage.

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