The 264 Forklift takes a bit of tuning to get it to operate properly. I've made adjustments to the spring and have done a thorough cleaning of all moving parts. A bit of graphite helps on certain moving pieces.
The one thing I have learned, at least with the one I have, is that it works better at higher voltages. This makes for a rather determined fork lift driver.....LOL Also, I did not fasten it to the platform at the back end. I just let the track hold it in place.
Fastening it down hard to the platform is a subject of some debate. For some, it works better. For others allowing some floating, if you can call it that, seems to be the trick.
At any rate, I agree, a can motor would be a good solution. However, we are still playing with toys that are fifty, sixty and seventy years old. Most with the ubiquitous vibrator mechanism. And they are still working or near waking. I wonder how long a can motor would have lasted in these toys.