Ther will be a H imprinted on the carburetor body next to the adjuster screws.
In most cases, you can locate the carburetor screws in the front of the carburetor. Sometimes you have to remove the air gilter to get to to the carburetor.
The idle speed is computer controlled. There is no adjustment. If the speed is too high or low, there is a sensor/actuator/wiring issue.
You can tune a Maruti automobile 800 carburetor engine by adjusting the fuel and air intake adjustment screws. With the engine running, turn the adjustment screws to obtain the proper idling speed.
Sounds like a choke problem/fast idle speed adjustment.
The idle speed is computer controlled
The camshaft operates the valves on a 4 cycle engine.
It doesn't have a band adjustment.
This engine probably has hydraulic lifters and no adjustment is required.
Install a vacuum gauge to a manifold source of vacuum (below throttle plates). With engine thoroughly warmed up and using a tachometer, turn engine idle speed adjustment screw down to 600 rpm. Start with one side idle air/fuel adjustment screw, turn it in slowly and watch the vacuum gauge. When the engine vacuum reading starts to drop, stop, then back out the screw until the engine just reaches its highest vacuum reading. Readjust engine idle speed to 600 rpm. Do this to the other side idle air/fuel adjustment screw then go back and do the first one again. After several times each you should be right on. Go back to the engine idle speed adjustment screw and set the rpm to factory specs.
classification of the reciprocating Internal combustion engine. according to t he cycle of operation. 1 two stroke 2 four stroke according to the number of cylinders. 1 single cylinder. 2 multi cylinder. according to the type of fuel 1 petrol engine 2 diesel engine 3 gas engine according to the arrangement of the cylinder 1 horizontal engine 2 vertical engine 3 V engine 4 radial engine 5 W engine according the the speed of the engine 1 low speed engine 2 medium speed engine 3 high speed engine according to method of ignition 1 spark ignition engine 2 compression ignition engine according to the method of cooling 1 air cooled engine 2 water cooled engine according to valve arrangement 1 overhead valve engine 2 T head valve engine 3 L head valve engine 4 F head valve engine according to the cycle of combution 1 otto cycle engine 2 diesel cycle engine 3 dual cycle engine
You can adjust it, by turning out the "Engine Governor Speed Adjustment" Screw. Check out the doodlebug manual, or message me for more details.
You CAN'T, There is no adjustment. ( NOT ADJUSTABLE ) It is all computer controlled. You need to have engine scanned with a engine scanner at a good shop that you TRUST. Then you will find out what the problem is.