Operation Manual
114 TROUBLESHOOTING / TECHNICAL SPECIFICATIONS
EN
9. TROUBLESHOOTING
1) The engine will
not start or will not
keep running
2) The engine starts
but is lacking in
power
3) The engine runs
irregularly and lacks
in power when
revved
4) The engine gives
o an excessive
amount of smoke
– Incorrect starting procedure
– Dirty spark plug or incorrect
distance between the electrodes
– Air lter clogged
– Carburetion problems
– Air lter clogged
– Carburetion problems
– Dirty spark plug or incorrect
distance between the electrodes
– Carburetion problems
– Incorrect composition
of the fuel mixture
– Carburetion problems
– Follow the instructions
(see chapter 6)
– Check the spark plug
(see chapter 8)
– Clean and/or replace the lter
(see chapter 8)
– Contact your dealer
– Clean and/or replace the lter
(see chapter 8)
– Contact your dealer
– Check the spark plug
(see chapter 8)
– Contact your dealer
– Prepare the fuel mixture according
to the instructions (see chap. 5)
– Contact your dealer
PROBLEM LIKELY CAUSE SOLUTION
Engine ................................. 2-stroke air-cooled
Capacity / Power
28/326 mod. ...................... 25.4 cm
3
/ 0.7 kW
33/336 mod. ...................... 32.6 cm
3
/ 0.9 kW
44/346 mod. ...................... 42.7 cm
3
/ 1.1 kW
Engine rotation speed at tick-over
28/326 mod. .......................... 2520-3080 rpm
33/336 mod. .......................... 2520-3080 rpm
44/346 mod. .......................... 2520-3080 rpm
Maximum engine rotation speed
28/326 mod. ................................. 10000 rpm
33/336 mod. ................................. 10000 rpm
44/346 mod. ................................... 9500 rpm
Maximum tool rotation speed
28/326 mod. ................................... 7800 rpm
33/336 mod. ................................... 7800 rpm
44/346 mod. ................................... 7400 rpm
Spark plug ............................... Torch L8RTC or
NGK-R BPMR7A or equivalent
Mixture ........... Petrol : 2-stroke oil = 50:1 = 2%
Tank capacity
28/326 mod. ..................................... 650 cm
3
33/336 mod. ..................................... 850 cm
3
44/346 mod. ..................................... 950 cm
3
Maximum permitted blade diameter
3 or 4 point blade ........................... Ø 255 mm
Weight
1)
28/326 ................................................... 6.8 kg
28 J ....................................................... 7.3 kg
28 D ...................................................... 6.9 kg
28 JD ..................................................... 7.7 kg
33/336 ................................................... 7.8 kg
33 D ...................................................... 8.6 kg
44/346 ................................................... 8.6 kg
44 D ...................................................... 9.5 kg
1)
Weight as per standard ISO 11806-1
(without fuel, cutting devices and harness)
10. TECHNICAL SPECIFICATIONS