Twenty five to one (25:1) or 4% is one of the easiest 2 stroke ratios to calculate, you simply multiply the litre amount by 4 and add a zero. To make it easier you can use the following reference chart.
|Fuel (L)||Oil (mL)|
Holzfforma Farmertec G260 = Stihl MS260
power: 50.2cc (=cm3) / 2.56 KW
bar length: 13″/32cm to 18″/45cm
Oregon ControlCut guide bar and chain 105670:
1x guide bar: 183SFGD025 18-inch (45cm) guide bar
1x chain: L74 = 74 drive link chain .325-inch (0.8 cm) pitch ( = length of a single link) and .063-inch (1.6 mm) gauge ( = width of a single link) for chainsaws up to 62cc.
recommended Oregon file for L74: 104005 (kit), 25896 (file with handle), 23727 (rod)
file: Vallorbe 7/32 (5.5mm) Round Chainsaw Files (3/8 & 404)
Castrol Activ 2T Motorcycle Oil – 1 Litre $21.99