Depending on how many cigarettes you are smoking every day, you may have either a small or large amount of nicotine in your system. As a guide, nicotine usually lasts between 2 to 14 days in the urine, 2 to 15 days in the blood, 1 to 4 days in the saliva, and between 30 to 90+ days from last use of nicotine products.
Coil resistance? My book says my coil resistance should be 4.0 Ohms (+/- 10%) on the primary and 9.5K on the secondary (+/- 20%). Unfortunately, I get 2.9 and 2.7 Ohms (more than 25% off) and 20K to 18K (like 100% off). Any time I use the electric starter on a cold, choked engine, my plugs like to foul.
Before discussing coil differences, it is important to understand the basic operation of an ignition coil. The function of any ignition coil is to convert a low voltage (12 volts or less) into a voltage high enough (25,000-plus volts) to jump the spark plug gap and ignite the fuel-air mixture in the engine cylinder. It performs this function by making use of the principle of induction.