Specifications

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START MECHANISM
WARNING: Risk of explosion. Spilled gas o line and it’s vapors can be come ignited
from sparks from smoking products, electrical arcing, exhaust, flame, gas es and hot engine
components such as the muffler.
Make sure there are no sources of ignition, such as
smoking products near servicing location. Wipe any fuel spillage from engine.
 1.IftheengineisequippedwithaD
eWALT battery
starter,pushthestartcontroltoSTARTandcheck
for crankshaft rotation. NOTE: Ensure a fully
charged 18V D
eWALT battery is being used.
  a.Ifthecrankshaftdoesnotrotate,pulltherecoil
startcord.Ifthecrankshaft rotatesthe electric
starter or connection to battery is faulty. Inspect
and repair.
b. If the battery start switch is engaged and the
electric motor can be heard running the problem
is with the drive pinion gear, service the starter
motor. If the electric motor can not be heard run-
ning the problem is electrical. See the Starter Motor Inspection section.
COMPRESSION TEST
 1.Removethesparkplugandthreadincompression
gauge.
2. Use pull starter to simulate starting engine (pull
briskly)orusefullychargebatterypackifelectric
start. Compression gauge should read 40 psi min.,
iflowerthan40psicheckvalveclearancebefore
proceeding further.
3. If valve clearance is in spec and compression is
stilllow,checkheadgasketandthenpistonrings
and cylinder bore for wear.
HINT: Onlyuseapeakcompressiongaugewhen
doingacompressiontest.Leakdowntesterscanonly
measure decay with the piston at TDC.