Need assembly diagram for ryobi c430 throttle cable drive shaft assembly

no repairng just replace with a new one

look for wear marks on the drive shaft that match the washers.These washers are used as spacers to provide proper gear lash,meaning they help ensure the full body of the gear teeth engage and not just the tips so using our powers of deduction they must fit on the back side of the gear face

sounds like the drive cable inside the shaft has disengaged from the motor or from the spool. possibly a broken drive cable.

NOTE to Classifiers: this is NOT a tiller or cultivator

Sounds like the throttle cable is sticking or the carburetor butterfly is sticking.
Squirt some WD-40 into the cable that attaches to the throttle handle and onto the mechanism the cable hooks to at the carburetor. Carefully actuate the throttle and see if the mechanism is moving smoothly. It may need several squirts and some actuation before it become free.

maybe someone took off the linkage cable what you need here is
to find a schematic of your unit and that should tell you where everything goes on the unit .you should be able to download a
schematic from the web!

Find your part number and look it up here:

http://www.ereplacementparts.com/ryobi-tiller-parts-c-7931_15702.html

I'm surprised you can't move the linkage yourself. The spring is attached to an arm that goes back under the cowling. That are has a blade on it the sits in the airflow of the motors cooling fan. As the motor runs faster the blade causes more tension on the spring and changes closes or opens the carburetor a little. The throttle cable and the fan set the position of the carburetor. Check to make sure the the blade up in the airpath has not somehow gotten jammed. Also the choke setting can cause the problem you describe. Make sure it's linkage is not binding somehow...

If you have managed to repair it once and it has gone wrong again then i would give up and buy new You have been lucky to get 7 ears out of it

mine was a total pain. I yanked on the rope so many times, it flew out of the keeper,and when I replaced it I ran it UNDER the fuel tank cutting a slot in tank. I also blew out the primer bulb. AFTER the replacement tank I arrived, I discovered rolling the machine forward helped the flow to carb and did not require priming. Now I need to fix throttle cable. But all in all, a tough little machine.

on the carb it has two letters and a # take the to a small engine shop and have them get a kit for it price should be under 15 dollars