I have an 86 Samurai that is extremely hard starting in cold weather. It starts in warm to hot, no problem, when it gets cold, 20 min to 1/2 hour jump starts to finally start. Spark seems weak but present, flooding on occasion, starting fluid has no effect, has always started if I continue to jump start. What "cold weather " item is causing the problem? I have a weber carb, new coil, cap and rotor, ignitor and generator test to proper output per suzuki manual. Ground issue? expansion/contraction on a contact point? I'm baffled? Seems to have been a gradually growing problem, but we don't get this #$%%# cold weather that much.