GAS GAS TXT 2018 Series, Руководство по ремонту

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Workshop manual
-22-
- Reassemble the carburettor completely. Re-mount the carburettor onto
the engine, making sure that the fuel lines and tap depressor activation are
properly connected.
- check that the air volume adjustment screw (compensator) on the low speed
(idle) circuit is in the same position as before it was removed (if in doubt,
consult the vehicle characteristics table to determine the standard position).
- check that the travel of the throttle cable is correct and that it does not
become caught or stiff at any point.
- adjust the play on the throttle grip by tightening or slackening the throttle
cable cover tensioner located beside the throttle control until a play of 3 to 5
mm is obtained.
- Remove the foam from the air filter, wash in a mixture of soap and water, drain
and dry completely, then soak with special filter oil and reinsert it.
- adjust the idle speed following the procedure below:
1. Start the engine.
2. Turn the slide valve rest position screw until the engine does not stall (screw in).
3. Turn the slide valve rest position screw again, slowly screwing in and out,
until a stable idle speed of 1,600 +- 200 rpm is obtained (use an external rev
counter).
4. Quickly perform the engine firmly using the throttle control and check that
the engine accelerates and decelerates smoothly and quickly with no gaps,
otherwise, change the position of the minimum circuit air adjustment screw
(Ta) by a ¼ turn to point 3.
By screwing in the Ta, a richer mixture will be obtained (with more fuel), while
unscrewing it will weaken the mixture (less fuel).
Carburettor disassembly and inspection