Both of these species are not common in North Dakota and were found to have tongues more than twice the length of the orchid spurs. This means that they could reach deep into the nectar-filled sacs from farther distances, without pollinating the plant. Researchers also captured eight bumble bee species.
Ignition coil resistance tests are used on the secondary aspects of the ignition coil. These tests should be performed with caution because the circuits of the secondary part of the ignition can have very high voltage. These tests should only be performed if there was inconclusive evidence in any of the primary tests.
If you know how to use an ohm meter, you can measure the plug wires resistance from end to end and see if they are within specifications. Look at the connectors, check for corrosion. Insulation on plug wires can break down, and they may arc to ground or other wires.lug Wires (or Spark Plug Wires, Ignition wires) connect the spark plugs to the distributor or ignition coils. Unlike most wires, plug wires are normally designed to have a lot of resistance. The resistance helps reduce radio static that the ignition system generates.