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4
Optional Tuning
Idle Adjustment Screw
Idle Adjustment Screw
Tornillo ajuste relenti
RPM Low
RPM High
Menos rev.
Mas rev.
The idle speed is set after the high-speed needle is adjusted and the engine is up to operating temperature. To properly set the Idle Adjustment Screw, turn on your radio system and
set the throttle trim on the transmitter so that the throttle is in its neutral position. This will ensure that the throttle slide is fully closed and resting against the idle adjustment screw. Turn
the idle adjustment screw counter clockwise to reduce the idle speed, or clockwise to increase it. The idle speed should be set high enough to keep the engine running smoothly but not
engage the clutch and turn the wheels. Too high of an idle speed will prematurely wear out the clutch shoes and brake disk.
El relenti debe ajustarse después de haber ajustado la aguja de altas y que el motor tenga la temperatura correcta. Para ajustar correctamente el relenti, conecte el equipo
de radio y coloque el acelerador en posición neutra. Esto le asegura que el acelerado esta cerrado contra el tornillo de ajuste. Gire el tornillo de ajuste el sentido anti-
horario para disminuir las revoluciones o en sentido horario para aumentarlas. El relenti debe ser lo suficientemente elevado para que el motor gire regularmente sin que el
embrague actúe y las ruedas no giren. Un relenti demasiado alto provocara un desgaste excesivo del embrague y del freno.
Low Speed Needle Adjustment
We recomend that you do not touch the Low Speed Needle. If adjustment is needed, the low-speed mixture is set after the high-speed needle is adjusted and the engine is up to
operating temperature. Set the needle flush (Factory Setting) with the carburetor body, this setting is ideal for breaking in and starting your motor. For increased performance turn the
needle in 1/8 turn increments; this will improve bottom end throttle response. To test your setting, place the car on the ground and let the engine idle for 30 seconds then accelerate to 3/4
throttle. If there is a lot of white smoke and the car accelerates slowly, the mixture is too rich. If the engine accelerates quickly and then sputters, the mixture is too lean.
When the low-speed needle is set correctly the engine's throttle response should be smooth and quick. CAUTION: Never turn in more than 2 turns from flush this will cause the
engine to run too lean and may damage your engine! If the Low Speed Needle is set too lean you will experience the following: Flame out at part or 3/4 throttle or Overheating
(Temperatures above
250°C (120°F)
El relenti debe ajustarse después de haber ajustado la aguja de altas y que el motor tenga la temperatura correcta. Para ajustar correctamente el relenti, conecte el equipo de radio y
coloque el acelerador en posición neutra. Esto le asegura que el acelerado esta cerrado contra el tornillo de ajuste. Gire el tornillo de ajuste el sentido anti-horario para disminuir las
revoluciones o en sentido horario para aumentarlas. El relenti debe ser lo suficientemente elevado para que el motor gire regularmente sin que el embrague actúe y las ruedas no giren.
Un relenti demasiado alto provocara un desgaste excesivo del embrague y del freno.
5
Troubleshooting
Description
Possible Problem
Fuel mixture needle settings are out of range
Engine does not start
Engine could be worn out
Out of fuel
Contaminated fuel
Glow plug igniter is not charged
Glow plug is bad
No fuel flow
Engine flooded
Engine has overheated
Throttle valve isn't adjusted properly
Air cleaner is blocked
Idle speed is set too low
Engine starts, then stalls
Air bubbles in the fuel line
Glow plug is bad
Engine is overheated
Airflow through system is bad
Throttle servo is improperly set up
Throttle servo glitch
Idle adjustment screw is set too high
Idle speed too high
Low speed needle set too lean
Improperly set neutral on transmitter throttle trigger
Problema
Causa
Ajustes erróneos
El motor no arranca
Motor usado
Falta de combustible
Combustible contaminado
Calentador de bujía descargado
Bujía defectuosa
No llega combustible al motor
Motor ahogado
Motor sobrecalentado
Mal ajuste del acelerador
Filtro aire obturado
Relenti muy bajo
El motor arranca y se para
Aire en los tubos de alimentación
Bujía defectuosa
Motor que se recalienta
Flujo de aire pobre
Servo del acelerador mal montado
Problemas del servo del acelerador
Ajuste muy alto del relenti
Relenti muy alto
Aguja de bajas muy seco
Posición del neutro mal ajustada en la emisora
Ajustes opcionales
Tornillo ajuste relenti
About 1mm (0.04")
Aprox 1mm (0,04")
Ajuste aguja de bajas
Flush (Factory Setting)
Enrrasado (ajuste de fabrica)
at the glow plug). If your engine is running too lean, reset the Low Speed Needle to its factory setting (Flush) and start the tuning process again.
Averías y soluciones
Improper Idle Speed Setting
Clutch engaged and wheels turning.
Ajuste incorrecto del relenti
El embrague actúa y las ruedas giran
No!
Low Speed Needle
More Fuel = Rich
Aguja de bajas
Mas carburante = Graso
Less Fuel = Lean
Menos carburante= Seco
Solution
Set the needles to the factory setting, see page 5 sec 6
Replace piston and sleeve
Refill fuel tank
Replace fuel
Charge glow igniter
Replace glow plug
Check fuel lines for cracks, leaks, and holes. Replace fuel line if necessary.
Remove glow plug and discharge fuel
Allow engine to cool, richen the fuel mixture and then restart
Set idle and adjust needle valve to the maunfacturers recommended settings
Check air filter. Clean or replace if necessary
Adjust the idle speed
Check for leaks or cracks in the fuel line
Replace glow plug
Allow engine to cool and then restart
Check connections between tank, engine and exhaust
Set servo to neutral and reset linkages according to radio and model manufacturer's specifications.
Replace the radio batteries
Set idle screw to factory setting, see page 5 for proper idle speed adjustment
Set low speed needle to factory setting, see page 5 for proper low speed needle adjustment
See your radio and car kit instructions for setting neutral on transmitter throttle trigger
Solución
Coloque los ajustes de fabrica
Reemplace el conj. pistón camisa
Llene el deposito
Cambie de combustible
Cargue el calentador de bujías
Sustituya la bujía
Compruebe que no hay fugas. Cambie los tubos si es necesario
Desmonte la bujía y vacíe el motor de combustible
Déjelo enfriar, ajuste la carburación mas grasa y vuelva a arrancar
Ajuste el relenti y vuelva a ajustar el acelerador segun manual
Compruebe el filtro, limpielo o cámbielo si es necesario
Ajuste el relenti
Compruebe los tubos de alimentación
Sustituya la bujía
Deje enfriar y vuelva a arrancar
Compruebe los tubos entre el motor,deposito y escape
Coloque el servo en neutral y monta el varillaje siguiendo el manual
Cambie las baterías del equipo de radio
Vuelva a los ajustes de fabrica, vea en la pag. 13 el reglaje correcto
Ajuste la aguja de bajas como se indica en la pag. 13
Revise las instrucciones de montaje de su kit y de su emisora para ajustar el acelerador.
4
Proper Idle Speed Setting
Engine runs smoothly without wheels turning.
Ajuste correcto del relenti
El motor gira regularmente y las ruedas no giran
Ok!
If idle is unstable, adjust the low
speed needle to get a stable idle.
Afterwards, you need to readjust
the idle adjustment screw.
Si el relenti es inestable, ajuste la
aguja de bajas hasta que se
estabilice. A continuación vuelva a
ajustar el tornillo del relenti.
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