Lighter than previous models with the same engine capacity and an extraordinary power to weight ratio the CS501SX is a must have forestry chainsaw. The Euro 2 engine ensures extremely low emissions and dramatically reduces fuel consumption. Inboard clutch, makes chain change and drive train maintenance much easier and faster Secure sprocket nuts are fastened to the sprocket cover to prevent falling off while you remove the cover Easy open fuel cap, the fuel filler cap can be easily opened by using the starter handle as a lever Side chain tensioner, the lateral chain tension allows for easy and quick regulating the chain tension. The oil pump is automatic and adjustable which reduces oil consumption while on tick over. Check fuel levels easily with the semi transparent fuel tank Specifications Engine displacement 50.2cc Dry weight * 4.7kg Output 2.57kW/3.5 ps Saw chain pitch .325 in Guide bar length 16/18" Guide bar gauge 0.058in Fuel tank capacity 0.5 litre * Without guide bar and saw chain