Throttle cable seems to be too short and not engaging properly what can I do?

Here are some possible causes and solutions:

Belt Issues: If the drive belt is broken or loose, the tines won't turn. Check the belt tension and replace the belt if necessary .
Idler Assembly: If the idler assembly is not properly tensioning the drive belt, the tines won't turn. Adjust the idler assembly or replace it if necessary .
Engagement Cable: If the engagement cable is loose or not tensioned properly, it may need to be tightened or replaced altogether .
Transmission Issues: If there is an issue with the transmission, such as a broken gear, the tines won't turn. Stop using the machine immediately and inspect the transmission .
Since you mentioned that your tiller tines were turning fast after replacing the carburetor and then stopped turning after connecting the throttle cable, it's possible that there is an issue with the engagement cable. You may want to check if it's properly tensioned and connected to ensure that it's not causing any issues How To Fix Tines That Will Not Move - Tiller Repair

Maybe you have not adjusted it properly. There are usually adjusting nuts on both ends to allow shortening and lengthening. Sounds like you have it adjusted too short.

E27 Open Throttle Switch Signal here is a list of all codes E12 No Distributor Reference Signal E13 Oxygen Sensor Not Ready E14 Shorted Coolant Sensor E15 Open Coolant Sensor E16 Generator Voltage Out of Range E19 Shorted Fuel Pump Circuit E20 Open Fuel Pump Circuit E21 Shorted Throttle Position Sensor E22 Open Throttle Position Sensor E23 EST Signal Problem E24 Speed Sensor Circuit Problem E26 Shorted Throttle Switch Circuit E27 Open Throttle Switch Signal E30 ISC RPM Out Of Range E31 Shorted MAP Sensor Signal E32 Open MAP Sensor Signal E34 MAP Sensor Signal Out Of Range E37 Shorted MAT Sensor Signal E38 Open MAT Sensor Signal E39 VCC Engagement Problem E40 Power Steering Pressure Switch Signal E41 Cam Sensor Signal Problem E44 Oxygen Sensor Signal Lean E45 Oxygen Sensor Signal Rich E47 BCM to PCM/ECM Data Problem E48 EGR System Problem E52 PCM/ECM Memory Reset E53 Distributor Signal Interrupt E55 Closed Throttle Angle Out of Range E58 Pass Key Control Problem E60 Cruise - Not In Drive E61 Cruise - Vent Solenoid Problem E62 Cruise - Vacuum Solenoid Problem E63 Cruise - Set Speed vs Vehicle Speed E64 Cruise - Acceleration Too High E65 Cruise - Servo Position Signal Problem E66 Cruise - Engine RPM Too High E67 Cruise - Switch Shorted E68 Cruise - Command Problem E70 Intermittent TPS E71 Intermittent MAP E73 Intermittent Coolant Sensor E74 Intermittent MAT Sensor Signal E75 Intermittent VSS Signal E80 Fuel System Rich E85 Idle Throttle Angle Too High E90 Cruise - VCC Brake Switch Signal Problem E91 Cruise - PRNDL Switch Problem E92 Heated Windshield Request Problem E96 Torque Converter Overstress E97 P/N To D/R Engagement Problem E98 P/N To D/R ISC Engaged Problem E99 Cruise - Servo Apply Problem

what kind of mower is it?
For any mower you need to check that you have proper oil level, and that there is gas in the tank. If it is a riding mower there are a few things to know before you start. There are safety interlocks that have to be complied with before a start is permitted. The blades must not be engaged. Someone must be in the seat, and the brake must be fully engaged. Move the throttle to choke for starting (or pull the cable out if that be the case), start mower. Return choke to normal operating position.
For a push mower check your oil and fuel. Prime the carb. if necessary, push the button by the carb. until you are pushing fuel and then a couple more times. If it has a throttle cable put in choke position. Pull back on the safety bar. Pull cord to start. Throttle cable to normal running position, generally full throttle right before you start to engage the choke.

I hope this helps, if any questions just reply. Be sure you let me know what you did and what kind of machine it is.

If this is really helpful, please rate.

I don't really understand what you're saying. You say your throttle grip turns in the "clockwise position" but doesn't engage the engine. If you look from the end of the throttle grip, turning the throttle grip in the clockwise direction would be turning the grip towards the idle position. Turn the throttle grip in the counterclockwise direction as viewed from the end of the grip to get the engine to speed up.

If the throttle grip does not seem to control the engine, then either the throttle grip is not secure on the throttle sleeve or you have broken cables.

Good Luck
Steve

There is no carburetor on any of the 6 cylinder or 8 cylinder Jeep Grand Cherokees. They have Fuel Injection and a throttle body which looks like a carburetor scaled down.

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Instructions on how to remove and replace the throttle body follow:

Throttle Body REMOVAL & INSTALLATION

1. Disconnect the negative battery cable.
2. Remove the vacuum hoses from upper bonnet, unfasten the retaining clips and remove the upper bonnet assembly.
3. Remove the lower bonnet retaining bolts and lower bonnet.
4. Remove the throttle cable and the return spring.
5. Disengage the wire harness connector from the injector.
6. Disengage the wire harness connector from the WOT switch, ISA motor and TPS.
7. Disconnect the fuel supply and return lines from the throttle body.
8. Tag and disengage the vacuum hoses from the throttle body assembly.
9. Disengage the potentiometer wire connector.
10. Loosen throttle body retaining bolts and remove throttle body assembly from the intake manifold. To install:
    
11. Clean the intake manifold and throttle body mating surfaces of old gasket material.
12. Install a new gasket and the throttle body assembly. Tighten the mounting bolts to 16 ft. lbs. (21 Nm).
13. Engage the potentiometer wire connector.
14. Engage the vacuum hoses to the throttle body.
15. Engage the fuel lines to the throttle body.
16. Engage the WOT switch, ISA motor, TPS, and injector electrical connections.
17. Install the return spring and throttle cable.
18. Install the lower bonnet and fasten the retainers.
19. Install the upper bonnet assembly, retaining clips and vacuum hoses.
20. Connect the negative battery cable.
21. Start the vehicle and check for fuel leaks. Fig. 1: Exploded view of the throttle body and related components
    

Remove the air cleaner and watch the throttle arm on the carburetor while operating the throttle trigger--suspect that the trigger assembly has acquired sawdust and dirt sufficient to limit proper travel of the trigger mechanism. Careful notes as you dis-assemble the trigger will help get it back together properly. There is little except proper maintenance to prevent debris accumulation in the trigger mechanism. Note: air leakage behind the carburetor can also cause high idle speeds--make sure the carburetor is fastened securely and that there are no flaws in the gaskets and heat insulator located behind the carburetor. Hope this helps!

Check throttle cable at carb and make sure you have full travel. Sounds like rpm is little to low. Throttle cables are usually held in place with 1 screw and a washer. Put cable at full throttle loosen screwand pull back until throttle at carb in at full then tighten screw.

It would seem that you have a pretty bad short. I would follow the throttle cable to see what source of power it is shorted to. I would also recomend disconecting thebattery till the problem is found.

Worst case senario is that a fire starts and somebody gets hurt.

No big trick here, just unbolt it and put the new one in. If it's adjustable use the dirt on the throttle body as a guide for proper placement. Make sure it engages properly on the throttle shaft as well.