QV-8000 - Echo QuikVent Chainsaw (Type 1E) (SN: 001001 - 999999) Cylinder Parts Diagram

Chainsaw: Engine: air-cooled, single-cylinder, 2-stroke - Displacement: 4.92 cu. in. (80.7 cc) - Bore/Stroke: 2.05 in. (52 mm) / 1.50 in. (38 mm) - Compression ratio: 7.321:1 - Bearings: heavy-duty ball bearings on crankshaft, caged needles on rod/piston pin - Max engine speed: 12,500 rpm (no-load) - Ignition: CDI with sloped advance timing - Spark plug gap: 0.024-0.028 in. (0.6-0.7 mm) - Fuel/Lubrication: 89 octane unleaded gasoline. 32:1 or 50:1 Echo two-cycle oil; 27 oz. (0.82 L) fuel capacity - Guide bar: 12 in. angle, industrial sprocket nose, 3/8" 7" teeth, 0.063" gauge - Chain: Papco Firebrand #75dg-50e, 400-S, 3/8" pitch, 0.063" drive link gauge, 4,150 fpm at 9,500 rpm - Lubrication: automatic/adjustable & manual override bar oil, 13.6 oz. (0.4 L) tank - Weight: 22.0 lb (with bar & chain, full gas & oil) - Features: patented skid/stand, anti-vibration, throttle safety catch, front/rear handles, chain brake, chain catcher, large starter handle.