Rovan LT-4WD, Instruction Manual

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High-Speed Needle (on the left
side)
Close the high-speed needle
turning it clockwise until it stops.
Then turn it counterclockwise 11/2
turns out(open).
Low-Speed Needle(on the right
side)
Close the low-speed turning it
clockwise until it stops. Then turn
it counterclockwise 11/4 turns
out(open).
Tuning Reference
SECTION E
Engine Tuning
Introduction To Engine Tuning
Factory Carburetor Settings
The engine can be further tuned from the
factory settings to optimize performance
under various conditions, if you lose track of
the engine settings, please revert back to the
factory carburetor settings (see next page)
before making adjustments: Please make
sure that the small vent in the Fuel Tank Cap
is open and air filter is clean, as it will affect
engine performance and tuning. The carburetor
needle is very sensitive. Adjusting the needle
even 1/16 of a turn is a significant change. Be
careful when making adjustments.