Honda BF45A - Page 286

BF40AoBF50A
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Engine Does Not Run Smoothly
~
Faulty Automatic SE (Starting
Enrichment) valve.
Inspect:
P. 5-18 and 19 Engine starts, but stalls
soon.
Idle speed
is not stable
or stalls.
Spark plug faulty.
Clean and adjust or replace
(see base shop manual).
+
Carburetor pilot screw and/or
throttle stop screw misadjusted.
Adjust (see base shop manual).
Overflowed carburetor.
and intake manifold mounting
bolts, and/or damaged carbure-
tor insulator and gasket.
Drain the carburetor and prime
again. If still not good, check
the carburetor float valve.
Retighten the carburetor
mounting bolts or intake
manifold bolts, if they are
loose.
Make sure the carburetor and
insulator are installed correct-
ly. Replace the gaskets if
they are damaged.
Valve clearance misadjusted.
Adjust (see base shop manual).
Low cylinder compression.
Check for defective cylinder
head gasket, valves or valve
seats.
Check that the cylinder head
bolts are correctly tightened.
Check for worn piston, piston
rings or cylinder.
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