There is a new racing engine from Briggs and Stratton that you may

There is a new racing engine from Briggs and Stratton
that you may not be familiar with. It is called the Local Option
206, or LO 206 for short. This engine is based on the Animal platform that we have been racing for a number of years. This gasoline powered engine has a double hologram seal on the crankcase
to prevent internal tampering and a 6100 rev limiting ignition assembly. The idea behind this is to provide consistent controlled
power output with minimal tech requirements. This engine, at the
end if its spec class life, can easily be converted to a full blown
Animal stocker.
Removing the engine from the box leaves us with a few
simple tasks to make the engine “track ready”. We need to plumb
our fuel and pulse lines for the factory installed fuel pump, add
the throttle kit, chain guard, breather tube, air filter, and exhaust
system. Let’s open the box and get started.
Let’s begin by plumbing our fuel system. The pump is
vacuum operated and the rules dictate that it be pulsed only from the
crankcase. Simply remove
the upper oil fill plug on
the front of the engine and
replace with a pulse fitting plug with a hose nipple. Tighten the
fitting securely and connect your fuel line from the nipple to the
connector on the pump marked “P”, for pulse. Use just enough
line to get the job done without kinking. Connect the outlet of the
pump, marked with an arrow pointing away from the pump to the
inlet on the carburetor. Our fuel system is now complete.
Let’s advance to mounting our throttle kit. Several styles
of throttle kits are out there, but the most common are very simi-
lar. Each one connects a fixed cable from the carburetor to a fixed
cable from the kart using an engine mounted bracket. The union
is made using male and female clevis’ hooked together. This is
necessary because each end of the cable requires a ball end. It
also makes it an easier task to change from one style of engine to
another.
Remove the two bolts holding the top plate closest to the
blower housing. We will mount the bracket for the throttle kit first.
Put into position, tall end toward the carb and replace the bolts.
clevis. Final placement of the clevis and trimming of the cable
needs to be done on the kart. Check the operation to make sure its
properly functioning, and that’s done.
Attach the specified header/ muffler assembly to the
Place
the compression fitting on the carb side of the bracket, and connect a short piece of brake tubing. Place the other end into the
rubber boot on top of the carb. Use just enough line to make a
nice smooth bend. Now, let’s remove the cap on top of the carb,
and add the cable. Once the cap is removed, lift out the return
spring and the slide. Insert the ball end of the cable into the hole
on the bottom of the slide, and let the cable lay into the slot coming back up the slide. Run the cable through the center of the
return spring, and let it sit back onto the slide. Re-insert the slide
into the carb, notched side toward the exhaust, and run the cable
through the cap, and the plastic tubing. Tighten the cap back on
top of the carb. Leave some excess cable and add the male throttle
engine using drilled bolts. Use a copper exhaust gasket, or my
personal choice, hi temp silicone to seal the header to the head. If
you use the sealer, use sparingly and remember as you tighten the
bolts, it will squeeze out. Tighten the bolts securely, and safety
wire them together.
Mount your breather tube kit by pushing the rubber
grommet into the opening in the valve cover and tapping the elbow fitting into the i.d. of the grommet. This is the most secure
way to vent the engine to the catch tank.
Attach your chain guard and your oiled air filter along
with the specified clutch, and you are ready to mount the engine
to the chassis. Don’t forget to add oil!
Like always, be safe rather than sorry, and ask for help if
needed. See you next month.