If you want to send me a private message, I have another more complicated idea, we might chat about if you would be interested? Bob in Oregon Raining Today Grrr!
Is there any way you could hook up a car horn or some audio device to the brake wire temporary? Connected to the electro-magnet wire on the brake you know is locking? That way you could leave the truck running with the e-brake on and wheels chocked, ...
I would highly suggest you have the carburetor ultrasonically cleaned, almost all the newer small carbs have a coating on them! Almost all shops have one for these smaller carbs, and they work great! BoB
Not sure if this will help you, sent the wife to a big trailer supply in Portland, Oregon and sent the can with her, it was the Elixir brand and she came back with a can of the Hengs brand and the salesman told her it was the same stuff, So did Heng'...