Echo QV-680 Instruction Manual - Specifications
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QV-680
QV-680
8.7 (19.2 lb.)
7.2 (15.9 lb.)
Air-cooled two-stroke single cylinder
66.8 (4.07 cu. in.)
50.0 × 34.0 (1.969 in. × 1.339 in.)
7.6 : 1
Heavy-duty, ball bearings on crank shaft, matched
caged needles on connecting rod and piston pin.
13500 (no load)
2200-3000
Diaphragm type
Recoil starter
Automatic centrifugal clutch
Electronic: CDI with SAIS (sloped advance ignition
timing)
NGK BPM7A
0.6 to 0.7 (0.024 to 0.028 in.)
Use 89 octane unleaded.
Do not use fuel containing methyl alcohol, more than
10 % ethyl alcohol or 15 % MTBE.
Do not use alternative fuels such as E-20 or E-85.
50 : 1 ratio with ECHO Power Blend X™, ISO-L-EGD
(ISO/CD 13738) and JASO M345-FC/FD two-stroke,
air-cooled engine oil.
Use an approved type fuel container.
Never mix fuel directly in the saw tank. Do not smoke
near fuel. Pour half of the gasoline into the container,
then all of the oil. Mix thoroughly before adding the
remainder of the gasoline. Then mix thoroughly again.
Fill the saw tank with fuel and tighten the fuel cap to
prevent leakage. Wipe up any spillage. Always move
away a safe distance from the fueling site before
starting the engine.
NOTE: Use of non-recommended oils or failure to
follow above instructions may result in engine
malfunction and will void the warranty.
0.64 (21.6 US. fl. oz.)
ECHO bar and chain oil (or motor oil)
0.37 (12.5 US. fl. oz.)
305 (12 in.) angle bar with industrial sprocket nose
1.6 (0.063 in.)
9.53 (3/8 in.) 7 teeth
A3T-50DL
9.53 (3/8 in.)
1.6 (0.063 in.)
21.1 (4150 f/m)
Automatic/adjustable and manual override
Detergent bar oil
Patented skid/stand for safer operation of equipment,
Large starter handle for use with gloves, Chain brake,
Anti-vibration system, Throttle safety catch,
Front and rear handles, Chain catcher.
kg
kg
mL (cm
3
)
mm
r/min
r/min
mm
L
L
mm
mm
mm
mm
mm
m/s
Mass
Engine
Ignition
system
Fuel and
engine
lubrication
Oil
Guide bar
Sprocket
Saw chain
Other
features
MODEL
With bar and chain, full
fuel and oil
Powerhead only, dry
Type
Displacement
Bore × Stroke
Compression ratio
Bearings
Maximum engine speed
Idle speed
Carburetor
Starter
Power transmission
Type
Spark plug
Spark plug gap
Gasoline octane rating
Mixture ratio
Fuel/oil mix
Gasoline capacity
Bar and chain
Tank capacity
Length
Gauge
Rim size
Rapco Firebrand Carbide
Chain pitch
Drive link gauge
Chain speed at 9500 r/min
Type
Bar lubricant
SPECIFICATIONS
* Technical data subject to change without notice.