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21. Raise the body posts to the upright position. Notice
there is a molded pin that fits into a hole in the shock tower.
This is to keep the body posts from swiveling during
running. Tighten the screws in the body posts, making sure
that the posts pull tight against the shock towers. You will
have to remove the screws in the tops of the front shocks to
get to the front body mount screws.
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22. Apply the decals to the body.
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23. Remove the body clips from the parts bag. On the
front body posts place a body clip in the bottom hole of each
post. On the rear body posts place a body clip in the third
hole from the bottom in each post. Place the body onto the
body mounts. On each body post place a body clip to secure
the body onto the chassis. The excess body post can be
trimmed off if desired.
The High-Speed Needle
The “high-speed” needle is sticking up from the side of the
carb. It is located in the brass housing, just above the fuel
inlet. It controls the fuel to air mixture of the carb. The needle
setting for break-in is 2 turns out from fully closed. Once the
engine is broken-in, the high-speed needle would typically
run from 1-1/4 to 1-3/8 turns out from closed, depending on
the temperature, humidity and altitude above sea level. To
richen the mixture, turn the needle counterclockwise; to
lean, it turn the needle clockwise.
The Low-Speed Needle
The “low-speed” needle located on the side of the
carburetor. It controls the fuel to air mixture at low throttle
settings. There is a simple way of adjusting the low-speed
needle correctly called the “pinch test.” With the engine at
idle, pinch the fuel line and listen to how the engine speeds
up or slows down. If the engine increases its speed for about
3 or 4 seconds and then loses speed, the needle is set
correctly. If the engine loses RPM quickly, it is set too lean
and the low-speed needle needs to be opened
(counterclockwise) to richen the mixture. Pinch again to
check the mixture. If the engine takes longer than 5 seconds
to slow down, lean (clockwise) the low-speed needle and
then pinch again to check the mixture. Note: Make sure the
high speed needle is set properly before the low speed
needle is adjusted.
The Idle Stop Screw
On the front of the carburetor, there is a black screw. This is
called the idle stop screw. This increases or decreases the
idle RPM without changing the fuel-to-air mixture. The barrel
should be approximately 1.5mm (between 1/32" and 1/16")
from fully closed.
CARBURETOR SETTINGS
BODY CLIP
BODY MOUNTING
10
