Model racers who want finer fuel control can fit the Serpent 804149 Fuel Tank Volume Inserts to reduce or alter tank capacity. These injection-moulded nylon inserts sit inside compatible tanks and help manage fuel behaviour in warmer conditions.
The Serpent 804149 set includes three insert sizes on a single frame, giving you quick options to change internal capacity. Lowering volume can help stabilise feed pressure and improve engine responsiveness on hot days.
These inserts are compatible with a number of Serpent fuel tank designs, including typical 75cc and 125cc configurations, making them suitable for a range of RC setups. Always double check fit and fuel pickup clearance during installation.
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