Mazda MR90 carburator problem

[hiranp]

 when the accelerator is pressed and released ,the engine is kept raised at idle without slowing down, and on motion after engaging gears the vehicle moves without the need to press the accelerator. i.e vehicle needs only the use of the clutch and the break pedal. Showed it to a mechanic and his advice is that the fault lies in the `door` of the carburator and not in the accelerator cable. your advice together with a recommendation of a garage where I can sought out this problem is very much appreciated 

[Rumesh88]

Just a few questions. 

1. Before pressing the accelerator does the engine rev at a lower RPM like 600 - 700 (you may not have a RPM meter but at least you can guess the RPM from engine beat).

2. Do you have the AC system working?

3. Which area are you located? Your location may help someone to give a recommendation on a mechanic near by.

 

[Twin Turbo]

Sticking throttle is a seroius safety prob,

you can try spraying carb clean for a temp fix but the unit is best inspected by a pro .

And when was the last time you replaced the air filter?

 

Edited July 23, 2018 by Twin Turbo

[hiranp]

On ‎7‎/‎23‎/‎2018 at 11:46 AM, Rumesh88 said:

Just a few questions. 

1. Before pressing the accelerator does the engine rev at a lower RPM like 600 - 700 (you may not have a RPM meter but at least you can guess the RPM from engine beat).

2. Do you have the AC system working?

3. Which area are you located? Your location may help someone to give a recommendation on a mechanic near by.

 

1.Before pressing the accelerator it is at a lower RPM. 2.AC system is not working.3.Location Malabe. TNKS

[hiranp]

On ‎7‎/‎23‎/‎2018 at 12:07 PM, Twin Turbo said:

Sticking throttle is a seroius safety prob,

you can try spraying carb clean for a temp fix but the unit is best inspected by a pro .

And when was the last time you replaced the air filter?

 

Air filter was replaced couple of years ago. Took the Echo test only couple of weeks ago passed with very good readings