Table 4-3. TroubleshootingTroublePossible causeRemedyEngine fails to start.1.Fuel tank empty.Fill up tank and vent fuelsystem.2.Fuel filter chokedRenew fuel filter element,in winter by paraffinUse winter-grade fuel.clouding.3.Fuel lines leaky.Check all fuel lines fortightness.4.Battery.Inspect the electrical system.If the battery requires recharging follow all applicable safetyprecautions and the batterycharger manufacturer's inst-ructions. Never use a batterycharger without these instruc-tions. If the battery doesnot recharge, replace thebattery.Units With Maintenance-FreeBatteries: Inspect the elect-rical system. If the troubleis isolated to the battery,replace the battery.Jump start the engine employ-ing approved safety practicesand booster jump starting in-structions provided in para-graph 4-12.Engine difficult to start.1.Battery output low,Have battery tested, cleanbattery terminalsterminals, tighten and coatloose or oxidizedwith acid-free grease; crankcausing starting motorengine smartly by hand.to run slowly; in win-ter, oil too viscous.2.In winter especially,Use a grade of motor oil tograde of motor oilsuit the temperature condi-used is too viscous.tions.3.Inadequate fuel supplyRenew fuel filter, evacuateBlocking of fuel sys-air, check fuel line connec-tern by paraffin cloud-tions for tightness.Useing in winter.winter grade fuel.4-31
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