Operation Manual

POWEG8010 EN
Copyright © 2018 VARO P a g e | 10 www.varo.com
10.3 Change/adjustment of the spark plug
Attention! Worn-out spark plugs or too large distance between breaker
contacts decrease the engine performance.
▪ Turn the unit off.
▪ Disconnect the sparkplug cable from the spark plug.
▪ Unscrew counterclockwise the spark plug with a spark plug key. Do not use any other tool
in order to prevent any damage.
▪ Use a control template (available at specialized shops) and check the distance between
the breaker contacts. The distance must be 0.635 mm.
▪ If necessary, correct the distance by carefully bending the ignition arch of the spark plug.
▪ Clean the spark plug with a wire brush.
▪ Insert a cleaned and adjusted spark plug or replace the damaged one by a new one.
▪ Reconnect the spark plug cable.
10.4 Carburetor adjustment
The carburetor was adjusted to optimum performance already during production. If the
carburetor requires readjustment, have it done at a specialized expert repair shop.
11 TROUBLESHOOTING
PROBLEM
CHECK
STATUS
CAUSE
REMEDY
Engine
cranks-
starts
hard/does
not start
▪ Fuel at
carburetor
▪ No fuel at
carburetor
▪ Fuel strainer
clogged
▪ Fuel line
clogged
▪ Clean or
replace
▪ Clean or
replace
▪ See dealer
▪ Fuel at
cylinder
▪ No fuel at
cylinder
▪ Carburetor
▪ See dealer
▪ Muffler wet
with fuel
▪ Fuel mixture
too rich
▪ Open choke
▪ Clean or
replace air filter
▪ Adjust
carburetor
▪ Spark at end
of plug wire
▪ No spark
▪ Power switch
off
▪ Electrical
problem
▪ Interlock
switch
▪ Turn switch on
▪
▪ See dealer
▪
▪ See dealer
▪ Spark at
plug
▪ No spark
▪ Spark gap
incorrect
▪ Covered with
carbon
▪ Fouled with
fuel
▪ Plug defective
▪ Adjust to
0.65mm
▪ Clean or
replace
▪ Clean or
replace
▪ Replace plug
Engine runs
but dies or
does not
accelerate
properly
▪ Air filter
▪ Air filter dirty
▪ Normal wear
▪ Clean or
replace
▪ Fuel filter
▪ Fuel filter
dirty
▪ Contaminants
residues in
fuel
▪ Replace