Question about 2005 Gilera Runner VX 125

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Throttle stuck my 2001 vx 125auto has the throttle stuck open. is there a commom fault with them?

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Get a new throttle

Posted on Jan 31, 2009

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Twist grip throttle stuck at idle


Hi George. Brad may be right with his answer but there might be something you can do.
Does the throttle open/turn as it should or is it stuck in the closed position and will not turn at all?
If it won't move then it could be a seized cable, a stuck mechanism at the carb end or a twisted or kinked cable.
If it does move but the engine doesn't rev it could be a broken or disconnected cable.
On top of the carb there is a mechanism where the cable end fits and this is pulled to rev the engine. Have a look and see if there is a cable attached. There may be 2 on yours, one to open the throttle, the other to close it and snap the throttle closed which is aided by a spring. When you open the throttle does this move? Yes, then the cable is doing its job. No, then the cable is not operating properly and is either broken or has come away at the throttle end and will need looking at. With the engine idling try to move the mechanism manually and see if the revs increase and then drop off when you release it (you might need a screwdriver to reach in to do this). If it revs and drops back down as it should, then the mechanism is operating as it should, If it doesn't alter the engine speed despite moving back and forth then it has detached itself in the carb and that will require investigation. At least if the cause is found it could be an easy fix, or cut the mechanics costs by pointing him in the direction of the fault.

Sep 22, 2015 | 2007 Suzuki Bandit 1250

1 Answer

I think the accelerator for vento scooter is stuck and when it shuts off makes a weird noise


You should know it if the accelerator (throttle) is stuck. If the throttle moves freely and the engine responds, it's not stuck. If the engine doesn't respond to input from the throttle it needs to be thoroughly checked from the throttle assembly on the handlebars to the carburetor. A corroded, kinked, or frayed cable can cause the throttle to stick. DO NOT RIDE WITH A STUCK THROTTLE! If it does hang wide open, hit the kill switch immediately and sort the issue out before trying to start the scooter again.

Jan 06, 2014 | Motorcycles

1 Answer

Bike starts wide open after wheel crash not throttle problem


If it is starting and going wide open the throttle is either stuck wide open or you have a huge vacuum leak across all the cylinders.

Jan 26, 2012 | 2001 Yamaha YZF-R6

1 Answer

Hi i have a 09 r1 code 12 and 60 showing i have tried everything check all points from service manual .... Please i need help


Error code 12: CRANKSHAFT Position Sensor >>> It could be the sensor itself, but I'd check all the wires and associated connectors that run from it to the ECU and check any that pass very close to the fan blades as it has been known for them to catch on them and become damaged.
Fault code No.: 60 Symptom: Throttle servo motor: open or short circuit detected. Defective throttle servo motor. Malfunction in ECU (servo motor driving system). Probable cause of malfunction: •Open or short circuit in wire harness. •Defective throttle servo motor (potentiometer circuit). •Stuck throttle servo motor (mechanism). •Stuck throttle servo motor (motor). •Malfunction in ECU. Diagnostic code No.: 01
FIRST thing to do is CHECK the ETV Fuse - 7.5A I think - This might NOT be in the main fuse box.
Hope this helps

Jul 13, 2010 | 2007 Yamaha YZF-R1

1 Answer

I have a 07 yamaha r1 and im getting 2 codes 22 and 60 and im not getting a throtle response what can it be?


Fault code No. 22 Symptom >> Air temperature sensor: open or short circuit detected.
Item/components and probable cause
1 Connections Air temperature sensor coupler Main wire harness ECU coupler Check the coupler for any pins that may have pulled out. Check the locking condition of the coupler. If there is a malfunction, repair it and connect the coupler securely. 2 Open or short circuit in wire harness. Repair or replace if there is an open or short circuit. Between air temperature sensor coupler and ECU coupler.(Brown/White)(Black/Blue) 3 Defective air temperature sensor. > Replace if defective.
Code 22 > Reinstated automatically if a normal signal is received.


Fault code No.: 60 Symptom: Throttle servo motor: open or short circuit detected. Defective throttle servo motor. Malfunction in ECU (servo motor driving system). Probable cause of malfunction: •Open or short circuit in wire harness. •Defective throttle servo motor (potentiometer circuit). •Stuck throttle servo motor (mechanism). •Stuck throttle servo motor (motor). •Malfunction in ECU. Diagnostic code No.: 01 FIRST thing to do is CHECK the ETV Fuse - 7.5A I think - This might NOT be in the main fuse box.
Hope this helps

Jul 13, 2010 | 2007 Yamaha YZF-R1

1 Answer

Erra code 60 appears when I start my 2007 r1,also engine management light appears and bike has no throttle responce


Fault code No.: 60
Symptom: Throttle servo motor: open or short circuit detected. Defective throttle servo motor. Malfunction in ECU (servo motor driving system).
Probable cause of malfunction:
•Open or short circuit in wire harness.
•Defective throttle servo motor (potentiometer circuit).
•Stuck throttle servo motor (mechanism).
•Stuck throttle servo motor (motor).
•Malfunction in ECU.
Diagnostic code No.: 01

FIRST thing to do is CHECK the ETV Fuse - 7.5A I think - This might NOT be in the main fuse box.
Hope this helps

May 07, 2010 | 2007 Yamaha YZF-R1

2 Answers

What does code 60 mean on my r1 the battery died and a 60 showed up on guages and now it wont start with a new battery


This is from the service manual.
Fault code No.: 60
Symptom: Throttle servo motor: open or short circuit detected. Defective throttle servo motor. Malfunction in ECU (servo motor driving system).
Probable cause of malfunction:
•Open or short circuit in wire harness.
•Defective throttle servo motor (potentiometer circuit).
•Stuck throttle servo motor (mechanism).
•Stuck throttle servo motor (motor).
•Malfunction in ECU.

Feb 17, 2010 | 2007 Yamaha YZF-R1

1 Answer

My 2008 yamaha r6 will not start fault code 60 is coming up on dash how can i fix this problem


This is from the service manual.
Fault code No.: 60
Symptom: Throttle servo motor: open or short circuit detected. Defective throttle servo motor. Malfunction in ECU (servo motor driving system).
Probable cause of malfunction:
•Open or short circuit in wire harness.
•Defective throttle servo motor (potentiometer circuit).
•Stuck throttle servo motor (mechanism).
•Stuck throttle servo motor (motor).
•Malfunction in ECU.

Feb 17, 2010 | 2008 Yamaha YZF-R6

1 Answer

Throttle is stuck open


Damsged throttle cable or housing. If cruisecontrol equiped, could be interfering with throttle grip rotation. good luck and no wheelies without a rider.

May 14, 2009 | 2005 Suzuki Boulevard C50

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