Operation Manual

POW60478 EN
Copyright © 2015 VARO P a g e | 10 www.varo.com
 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
 Fuel filter
 Fuel vent
plugged
 Contaminants
residues in
fuel
 Clean or
replace
 Spark plug
 Plug dirty
worm
 Normal wear
 Clean and
adjust or
replace
 Carburetor
 Improper
 Vibration
 Adjust