Royal Enfield Classic 350 Service Manual Page 223

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11-2
This section discusses trouble shooting on various performance problems.
This following check list can be helpful in locating most of the operating troubles.
Complaint : Engine fails to start
Ignition switch in ‘OFF’ Position Switch ‘ON’ ignition
Stop switch in ‘OFF’ Position Push stop switch to ‘ON’
position.
Fuel is stale due to vehicle being in Clean petrol tank and
storage for a long period carburetor and fill the tank
with fresh petrol
Fuel adulterated Refill with good fuel
No fuel in the tank Fill up the tank
Vent hole clogged in fuel tank cap Clean vent hole.
Fuel Line Clogged Clean the fuel line.
Fuel hose cracked resulting in fuel Check and replace
leaking out and not getting supplied
to injector
No fuel Supply from Fuel pump Replace fuel pump.
Fuel pump pressure insufficient/fuel Check fuel pump coupler
pump not working connection/ Check fuel
pump relay for proper working
Fuel Injector blocked Replace fuel injector.
MIL glowing continuously Check Sensor connections & correct
Weak Battery / Dead Battery Charge / Replace the battery
Electrical connections Loose Check & Correct
Electrode Gaps incorrect Adjust the gap
Wrong specification spark plug Replace with right plug
Defective spark plug Change Spark Plug
Spark plug electrode dirty / fouled Clean park plug & Reset gap.
Spark plug cap / lead not connected Fix cap / lead firmly.
Spark plug insulation cracked Replace Spark plug.
Wrong Spark Plug Fit the correct Spark Plug
Loose HT connections/ damaged HT lead Fix connections firmly/ Replace Lead
Defective plug cap Change the cap
Cracked spark plug insulator Change the spark plug
Loose connections Tighten connections
Fouled Spark plug Clean and adjust the gap
Cracked HT lead Replace H.T. lead
Observation Causes Remedies
Electricals Related (No
Voltage/No Spark /
Weak spark /Side spark /
intermittent spark
Fuel Starvation
General
Trouble Shooting
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