Carson CV-10B Chassis NEW GENERATION Mode D'emploi page 20

f. Showtime... almost!
Engine break-in is the most important step to assuring that your
engine is fast and reliable throughout its life. Put simply:
DON'T SKIP THIS PART!
The engine is pre-set from the factory for break-in. Use a "Car Stand"
50 090 8071 or platform and place the car so that the wheels are off
the ground and rotate freely.
GB
Make sure the throttle is set at neutral with your radio. Place the glow
heater onto the glow plug and give the recoil a sharp pull (picture 5).
Do not pull it more than twelve inches! More than that may break the
cord and this is not covered under warranty. It is better to give the
recoil short sharp pulls rather than long ones. If the pull-start cord gets
stuck, rotate the flywheel a little bit with your finger. This should make
the cord automatically recoil. Within a few pulls, the engine will start
with a good puff of smoke.
Picture 5
If the engine has trouble idling at the rich setting, turn the idle screw
clockwise 1/8th of a turn at a time. This will increase the idle allowing
the car to break-in properly. Try to do this in a well-ventilated area,
such as your driveway. Unburnt oil from the fuel will accumulate under
the exhaust, so be prepared. Let the car idle like this for 2-3 tanks of
fuel checking the engine temperature every 2 minutes.
Please allow a break of 10 – 15 in between filling the tank to allow
the engine to cool down. You should be able to touch the head of the
engine with your fingertips and it will be hot, but not uncomfortably
so. (Attention! Do not touch!) If it seems very hot, richen (turn counter-
clockwise) the high-end and low-end needles 1/8th of a turn. Always
use small increments when making these kinds of adjustments.
20 CARSON CV-10B Chassis NEW GENERATION
Racer Tip:
Factory setting of carburettor:
With the following basic adjustment the engine starts immediately,
running perfect and rich enough.
• Idle stop screw: approx. 1 mm air gap;
• High speed needle valve: screw in completely, then open 4 full
turns;
• Low speed needle valve (linking): flush with the edge of the linking
arm, then 1 full turn clockwise;
Picture 6
richer
Picture 7
richer
After run-in is finished the high speed needle valve should be open at
least 3 and 1⁄4 turns. A richer setup is better if outside temperature is
high.
Racer Tip:
Drive your car slowly with the rich setting shortly after the break-in
period avoiding prolonged periods at full throttle. Gradually lean out
the mixture 1/8 of a turn at a time. The idle will increase the more you
lean the engine out.
leaner
lower
speed
higher
speed
leaner