Edition 02.97 Power Mower 5400 45
5. Maintenance: 2-Stroke-Engine
Cleaning Spark Plug and
Adjusting Spark Plug Gap
After every 50 operating hours
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remove soot from spark plug elec-
trodes with a steel brush,
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check electrode gap and set to
0.5 mm.
Exchange spark plug after approx. 100
hours of operation.
Fuel System
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Each time you maintain the machine,
check fuel hose, fuel tank, and
carburetor for leakages. Repair, if nec-
essary.
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Replace fuel hoses after every 2
years, immediately exchange leaking
hoses.
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Always fill correct stoichoimetric ra-
tio of fuel.
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If engine received too much fuel
(flooded), move speed control lever to
“max” and crank engine with recoil
starter until engine starts. Or remove
spark plug and clean and dry. With spark
plug removed, crank engine a few times
with recoil starter. Screw spark plug
back in and re-start engine.
Idling Speed
Always ensure that idling engine speed
is adjusted correctly. At low speeds, the
engine is supposed to continue running
smoothly, with speed control lever in
idling gas position at stop.
Adjust engine speed while the engine
is still warm from operation. Fine-tune
engine speed by adjusting the idling
speed control screw (F/3) and air con-
trol screw (G/5). (For basic settings re-
fer to “Specifications”). Then adjust throt-
tle control cable free of play with clamp-
ing or adjusting screw. (For idling speed
rates refer to “Specifications”).
We recommend to have the necessary
adjustments done by your AGRIA work-
shop.
Governor
For proper function of governor on en-
gine, keep governor spring, lever and
linkages clean from dust and plant trash.
0.5 mm
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