My son's chinese made 4 wheeler had one. It was a tether... had a long nylon strap that attached to a pull switch. if the kid got too far away, it would unplug and kill the motor. I would imagine that you could either walk behind them or attach it to your handle bars and let them ride in front of you.
ATV Pull Kill Cord Switch Safety Tether 125cc 110cc 90cc 70 50cc Quad 4 Wheeler | eBay
ATV Pull Kill Cord Switch Safety Tether 125cc 110cc 90cc 70 50cc Quad 4 Wheeler | eBay
Google "remote control kill switch"
I found this one right off.
Remote Engine Shut-off for Non-12V Vehicles | 400555 | BMI Karts and Motorocycle Parts
I found this one right off.
Remote Engine Shut-off for Non-12V Vehicles | 400555 | BMI Karts and Motorocycle Parts
I made one many years ago for the mini Dune Buggy Kart I built for my Grandchildren I bought the 2 channel RC control but a single was all that was needed just to kill the little 3 HP Tecumseh engine. I bought a small plastic box to hold the little RC motor and a pair of batteries and a small antenna This box was mounted behind the seat next to the engine.
What a great thing it was to slow down a hot rod grandson if he was going to fast it would kill the spark to the engine as long as you held the lever on. That device was so great when at times there were as many as 15 kids from 4 to 13 taking turns riding this kart and they used the control for all the beginner riders. All I was there for was to fill the machine with gas and do any adjustments needed. This Kart was used by my Grandkids for years and then I loaned it to a friend for his Grandkids. Now it's back to be rebuilt and sold this time. All new bearings Tries and chains and clutch. And what ever the little side popper needs. It has a jack shaft that I designed and made to be able to control the gearing.
What a great thing it was to slow down a hot rod grandson if he was going to fast it would kill the spark to the engine as long as you held the lever on. That device was so great when at times there were as many as 15 kids from 4 to 13 taking turns riding this kart and they used the control for all the beginner riders. All I was there for was to fill the machine with gas and do any adjustments needed. This Kart was used by my Grandkids for years and then I loaned it to a friend for his Grandkids. Now it's back to be rebuilt and sold this time. All new bearings Tries and chains and clutch. And what ever the little side popper needs. It has a jack shaft that I designed and made to be able to control the gearing.
Don't know if this will work for you Roger and I don't see a shut off range specified but might be worth a look!
New Remote Kill Start Stop Switch Alarm For Chinese ATV 50CC-125CC Universal | eBay
New Remote Kill Start Stop Switch Alarm For Chinese ATV 50CC-125CC Universal | eBay
