Chapter 12: Setup & Maintenance
Parts & Service
on non-motor hardware improvements
Winterizing your Paramotor by Alex Varv
The motor continues to run even after activating the kill switch
All gas paramotors that I'm aware of shut down the engine by preventing
a spark. The preferred method is by shorting out the coil with a switch
on the throttle stem. Anything that allows the kill switch to short out
will shut off the motor by preventing a spark just like the pilot was
pressing the kill switch.
Possible solution or link.
|The motor tries to die but does not.
1. The Kill Switch wire is only
loosely touching any of its terminations or is broken at any point along
its run, the motor will not quit although it may run rough. It may look
fine but the wire is broken inside its insulation.
2. It may be
Dieseling is where the motor continues to run even in the absence
of spark. It is usually because of heavy carbon deposits on the piston and
cylinder head. These deposits remain hot enough to continue igniting the
fuel-air mixture. Decarbon the head.
|The motor will not quit at all
1. The kill wire is disconnected.
2. The switch is defective.
Coil Kill Wire Repair
If the kill switch becomes disconnected right at the coil, you're
best off replacing the coil (you might not even see the break). However,
this field fix might work if you're willing to accept the possibility of destroying
your coil in the process. That would, of course, make your motor un-startable.
If the kill wire breaks off at the coil, screw in a very thin screw
onto where the kill wire went in. Go too deep and you'll short out the
coil, destroying it. Once the screw is secure, connect the kill wire to
Another approach is this one by Paul Lindquist:
Using a reasonably powerful soldering iron
or gun, melt the black stuff around the copper stud until it is
exposed. Don't melt too deep and get into the primary winding. Now
solder the wire back onto the stud. If you are having trouble getting
the solder to stick to the stud you are using too cool of a solder
gun/iron. Then put high temp silicone (doesn't have to be super high
temp) around the top of the coil where the kill wire and spark plug
wire exit the coil. I also put a dab of silicone where the kill wire
enters the throttle cable bundle to dissipate vibration.