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.
To perform a standard ignition coil primary resistance test, the ignition should be off in the car. Once the two low voltage coil terminals are disconnected, the resistance should remain between 0.3 and 1 ohms. A switching test uses a 12 VDC test lamp. A small straight pin should be inserted into the wire that runs the negative coil to the TFI module. The pin can then be connected to the lamp.
â¢ When troubleshooting any electronic ignition system for no spark, follow these steps to help pinpoint the exact cause of the problem: â¢ Step 1. â¢ Turn the ignition on (engine off) and, using either a voltmeter or. a test light, test for battery voltage available at the positive. terminal of the ignition coil.