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SKYROCKETING AND PROBABLY LIKE
YOU I DONT UNDERSTAND WHY,TO THE
RIGHT ARE SOME LINKS TO FUEL
ARTICLES.
releases have been used.Hower, none proved entirely satisfactorily until briggs
@stratton developed the 'easy spin' starting system.THIS IS SO SIMPLE ONE
WONDERS WHY IT WAS NEVER THOUGHT OF BEFORE.The intake lobe on the
cam gear is ground with a small ramp which holds the intake open one one
thousanth of an inch for a tiny fraction of the compression stroke.
interval of time that the valve is
open is relatively long and
therefore enough air escapes to
noticeably reduce the
compression.However,at
operating speeds the interval of
time is so short that there is
practically no escape and
therefore horsepower is
unimpaired.Actually at 3600rpm
the valve is opened for a mere
1/200 of a second.In all other
respects the valves operate as
in any other four stroke cycle
engine.
The force required to start an
engine is reduced by 50% with
easy spin and would be noticed
most by a person who has
difficulty starting the ordinary
engine.
engine one must spin the flywheel backward in the opposite direction to normal
rotation.This will bring the compression stroke on the opposite side of the cam
lobe and allow you to feel the compression, which is an easy way to check for
compression without a compression guage anyway.