Engine Starts Hard And Runs Rough (Gasoline Units); Test - Generac Power Systems Guardian 5410 Repair Manual

Section 6
TROUBLESHOOTING FLOWCHARTS
Problem 8 – Engine Starts Hard and Runs Rough (Gasoline Units)
TEST 25 –
CHECK
FUEL
SUPPLY
LOW FUEL
REPLENISH
FUEL
SUPPLY
TEST 33 – CHECK
CARBURETION
ENGINE RUNS O.K. NOW
STOP TESTS
TEST 32 – CHECK
VALVE
ADJUSTMENT
BAD
ADJUST VALVES
Page 32
TEST 29 –
CHECK
GOOD
IGNITION
SPARK
ENGINE MISS IS APPARENT
TEST 31 – CHECK
AND ADJUST
IGNITION
MAGNETOS
GOOD
REPAIR OR REPLACE
TEST 40 – TEST
GOOD
CHOKE HEATER
GOOD
GOOD
CLEAN AND REGAP OR
REPLACE SPARK PLUG
BAD REPLACE MAGNETOS
TEST 34 – CHECK
CHOKE
SOLENOID
BAD
BAD
CHECK
FLYWHEEL KEY
GOOD
– SEE TEST 31
ON PAGE 57
REPAIR OR REPLACE
AS NECESSARY
TEST 30 –
CHECK
GOOD
SPARK
PLUGS
BAD
GOOD
ADJUST, REPAIR OR
REPLACE AS
NECESSARY
TEST 35 – CHECK
ENGINE / CYLINDER
LEAK DOWN TEST /
COMPRESSION TEST
BAD