have found the problem with your cart’s
performance. Sometimes there is a second
filter located underneath the carburetor
facing the front of the vehicle. Check to see if
you have one and make sure it is also clear of
deposits.
To set the air mix and Throttle screw, we need
to use the Torx T15 and remove 2 screws
holding the cover that hides the adjustments.
After removing the screws, pick up the right
edge of the cover and pivot it over and off.
Use a pair of needle-nose pliers and remove
the fuel line and exhaust vent tube to provide
easy access to the adjustment screws.
I found the exhaust vent tube on mine had
been torn in half by the sharp edge of the
cover sometime in the past. Fortunately,
the tube was long enough to snip off the
damaged part and still have enough to reach
the nipple on the carburetor body.
“A” is the throttle adjustment and using the
flat screwdriver, back the screw away from
the plate that it pushes against until there is
a gap between them. Turn the screw until it
touches the plate, then 1/4 turn further.
“B” is the air mix adjustment and this is set by
turning it closed to a soft seat, then back it out
1-1/4 turns. Hook the fuel line and crankcase
vent tube back up and replace the cover,
tightening down the two screws.
Check the Spark
Locate the spark plug on the top of the engine
and remove the cable, exposing the top of
the plug. Use a spark plug socket and ratchet
to remove the spark plug and inspect the
ceramic insulator. This should be light brown
to brown and not oily or wet. If it is black in
color, you might be running too rich of a fuel
mixture, requiring an adjustment to the air
screw (we will cover this later).
The electrode should be visibly free of
deposits and can be scraped clean if needed.
Check the gap with a spark plug gap tool
(cheap or free at most parts counters) and
set this gap to .028 – .030. Replace the spark
plug and screw into place using the socket
and your fingers to prevent cross-threading.
Lightly tighten with the ratchet…no need to
strip it out by tightening too much (you do
NOT want to deal with a stripped out spark
plug hole on the engine’s head). Push the wire
connector back on to the spark plug.
Set Your Cart To “Maintenance Mode”
After all of these steps are completed, and
the connections, clamps, and hoses are all
back where they should be, it is time to test
our work. Located on the wall of the engine
compartment opposite of the engine is the
switch cam. This is on the backside of the
forward/neutral/reverse lever. Put the lever in
the “Neutral” position.
Grasp the cam as shown in the picture and
pull out on the cam. Rotate the cam about
180 degrees or so that when released the
cam is now pressing upon the microswitch
on top. When the microswitch is engaged in
the “pressed” position, and the lever is in the
“Neutral” position, you can start the engine
without the cart taking off. It would be safest
to chock the wheels to prevent an accidental
runaway should you bump the lever while
running the engine.
Start It Up
After you have all of the safety measures
in place, reach in and press the accelerator
with your hand and the engine will begin to
turn over. If the engine is still cold, you may
need to use your other hand and press the
choke button until it fires off. Listen to the
engine while revving up and down to see if
your engine is running better now. Note that
the engine will not idle when you release the
accelerator, because the cart is designed to
stop running when your foot comes off the
pedal.
MAY 2020
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