Kohler KT17 Service Manual

SECTION 6
ELECTRICAL SYSTEMS AND COMPONENTS
Normal: A plug taken from an engine operating under
good conditions will have light tan or gray colored
deposits. If the center electrode is not rounded off, a plug
in this condition could be re-gapped and reused.
Worn: On a plug which has been in service too long, the
center electrode will be rounded off and the gap will be
eroded .010" or more than the correct setting. Replace
worn plugs as they will require excessive voltage to fire
properly. Always replace plugs in pairs.
30
Carbon: Soft, sooty black deposits indicate incomplete
combustion which could be attributed to rich carbure-
tion, weak ignition, retarded timing or poor compression.
Wet: A wet plug could be caused by drowning with raw
fuel or oil in the combustion chamber. The raw fuel
problem may be caused by operating with too much
choke. Oil in the combustion chamber area is usually
caused by worn rings or valve guides.

Kohler KT17 Specifications

General

Cooling System	Air-cooled
Type	Horizontal shaft
Horsepower	17 hp
Fuel Type	Gasoline
Displacement	0.694 liters (694 cc)
Power	17 HP (12.7 kW) @ 3600 RPM
Ignition System	Magneto
Oil Capacity	1.9 L (2.0 US qt)
Starter	Electric
Bore x Stroke	3.03 x 2.95 inches (77 mm x 75 mm)