One issue I’ve come across with a very beat up Clutch Popper, which is pretty easy to fix is where one (or both) of the rear wheels slips around the axle, therefore not driving the motor. This can happen on very well used/beat up models, and they’ve effectively been written off as no longer working. It’s an easy one to spot, if you turn one of the tires and the opposite tire doesn’t also turn, then that tire is no longer fixed to the axle. Solution – glue it back on! This is another one you could get kids to do (with help), but they need to be a bit older as for a couple of the steps (particularly the gluing) you need to be careful what you’re doing and where you’re getting that glue – i.e. don’t get a 5 year old to give this fix a try on your dining room table:p
So first you’ve got to get the tire off, and even though it’s turning on the axle it still may take some force to lever it off. Easiest to put it in a vice, and with a large screwdriver between the wheel and the chassis, lever the wheel off a bit at a time until it pops off.
Then you just need to glue it back on, but not any old glue for this one. You’ll really need to use an epoxy type (2 part) glue to make sure these wheels stay stuck on for good! Mix the epoxy according to the instructions, just need a very small amount, then apply a little to the axle (use a nail or something like that as an applicator), and put a little into the hole in wheel where the axle will go. Push together until the wheel is fully on, if any extra epoxy has bunched up on the axle near the chassis, then carefully scrape that away – you don’t want to epoxy the wheel to the base!:) Let it sit for a good 8 hours to fully cure/harden (even if it says it cures in 30 minutes or something like that), and it should be good to go.
I had/have one like this, very beat up, but once the wheels were fixed back on (both of them slipped around the axle) it turned out to be one of the best!