Kohler K582 Service Manual

IGNITION SYSTEMS
While the source of energy for the ignition system may be either magnetc or battery (generator
or alternator), most other components are common in function in all systems even though they may not
be alike in appearance or location.
When checking out an ignition system, start with the components that require most frequent
ser -
vice or adjustment. Hard starting, roughness, low power and erratic operation are often attributed to
faulty ignition. All components must be in top condition and the ignition spark must be properly timed
to maintain good performance.
SPARK PLUG
Engine misfire or generally poor operation is often caused by spark plugs in poor condition or
with improper gap setting. Always clean area around spark plugs before removing to prevent dirt
from falling into engine.
The first thing to do after removing a spark plug is to carefully note its con
-
dition as this is often an indicator of the ignition trouble. Plugs fail for various reasons. Often the
porcelain insulator cracks or becomes coated with oil, carbon or other deposits. This can cause the
high voltage ignition impulse to pass from the center electrode to ground without jumping the spark gap.
As an engine operates, the electrodes are gradually burned or worn away.
In time,
the gap becomes
so wide that the available ignition voltage cannot jump the gap and the engine misses.
Spark Plug Service:
Every 100 hours remove plug, check condition and reset gap. Good operating con
-
ditions are indicated if plug has light coating of gray or tan deposit. A dead white, blistered coating
could indicate overheating.
A black (carbon) coating may indicate an "overrich" fuel mixture caused
by clogged air cleaner or improper carburetor adjustment. Do not sandblast, wire brush, scrape or
otherwise service plug in poor condition
-- best results are obtained with new plug.
SPARK PLUG DETAILS
MODEL
/ IGNITION TYPE I PART NO. 1 GAP
1 1 235040-8 1 ,035 in. .89mrn
K482-K582 /
Battery
" Standard resistor plug.
BREAKER POINTS
K662
Engine operation is greatly affected by breaker point condition and adjustment of the gap.
If
points are burned or badly oxidized, little or no current will pass and as a result the engine may not
operate at all, or if it does run it is likely to miss particularly at full throttle.
Adjusting breaker
point gap affects the time that the contacts are opened and closed.
If the points are adjusted to a wider
gap, they will open earlier and close later in terms of cam movement. A definite time is required for
the magnetic field within the ignition coil to build up to sufficient value. If the contact points are
closed for too short a time, a weak spark will be produced by the coil.
If points are set too wide, they
will open before the primary current reaches the maximum value and on the other hand if set too close,
they will open after the primary current has passed its maximum value.
I
Always replace badly burned or pitted breaker points.
A certain amount of build up or metal
transfer occurs under normal operating conditions; however, if this occurs too frequently and becomes
excessive, the condenser may be at fault
-- see Condenser Service for details. Slightly pitted points
can he dressed down with a point file, although this should be done only as a temporary field fix since
points may tend to arc more readily after filing. Replace points at first opportunity after filing.
If the
points are oxidized, rub a piece of coarse cloth between the surfaces.
Dirty or oily
points.can be
cleaned with cloth but make sure no particles of lint are left between surfaces. On engines equipped with
the Alternator
svstem, the breaker points are externally mounted on the governor and operated off a
cam on the governor driveshaft.
On engines with the external unit magnetos, the breaker points are
located inside the magneto.
Refer to Magneto or Alternator headings (depending on type used on the
engine) in this section for specific details on breaker points or contacts.
*235041-S
Magneto
,025 in. .64mm
270321-5
*41 132 06
,025 in. .64mm

Kohler K582 Specifications

General

Brand	Kohler
Model	K582
Category	Engine
Language	English