Generac Power Systems 5410 User Manual

Section 6
TROUBLESHOOTING FLOWCHARTS

Page 32

ADJUST, REPAIR OR

REPLACE AS

NECESSARY

REPLACE MAGNETOS

GOOD

Problem 8 – Engine Starts Hard and Runs Rough (Gasoline Units)

BAD

GOOD

TEST 25 –

CHECK

FUEL

SUPPLY

LOW FUEL

ENGINE MISS IS APPARENT

TEST 29 –

CHECK

IGNITION

SPARK

TEST 30 –

CHECK

SPARK

PLUGS

CLEAN AND REGAP OR
REPLACE SPARK PLUG

ENGINE RUNS O.K. NOW

STOP TESTS

REPAIR OR REPLACE

AS NECESSARY

REPAIR OR REPLACE

ADJUST VALVES

REPLENISH

FUEL

SUPPLY

TEST 31 – CHECK

AND ADJUST

IGNITION

MAGNETOS

TEST 34 – CHECK

CHOKE

SOLENOID

TEST 32 – CHECK

VALVE

ADJUSTMENT

TEST 35 – CHECK

ENGINE / CYLINDER

LEAK DOWN TEST /

COMPRESSION TEST

CHECK

FLYWHEEL KEY

– SEE TEST 31

ON PAGE 57

TEST 33 – CHECK

CARBURETION

TEST 40 – TEST

CHOKE HEATER