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.
1 If there is no spark, the problem is probably in the primary circuit through the ignition switch, the coil, the green lead or the black lead, or the ground connection in the distributor; Perform STEP 3. 2  If there is a spark, the primary circuit wiring and coil are probably OK. Check for loose or damaged spark plug or coil wires. 2  A wire resistance check is given at the end of this section. 3  If the boots or nipples are removed on 8mm ignition wires, reline the inside of each with new silicone dielectric compound (Motorcraft WA-10).