Adjusting the carburetor without special tools - modifying the L and H screws

China-BILLIG motor scythe. Carburetor adjustment option. Machining the screw head.
Cheap no-name motor scythes or chainsaws are sold with standard carburetor adjustment. The engine usually does not run optimally with this. The L and H screws must be adjusted again if you want to use your device for a long time without piston seizure. However, special screwdrivers are normally required for these two screws. The video shows how the adjustment screws can be tightened and loosened without special tools.
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