Hey Guys, Curious if anyone knows basic rough specs for cold engine compression on my 83 xj750 midnight maxim I'm about 400 feet above sea level if that makes a difference. With Spark plugs in and capped, my readings from left to right ( 1-2-3-4) were: 131-105-110-107 With all spark plugs removed, my readings from left to right ( 1-2-3-4) were: 110-120-123-120 Engine was cold and had a bit of help from a trickle charger set to jump. I know the battery is fine. However I did notice my 3 and 4 cylinders are not firing either. new plugs had a faint fuel smell but the prong on the plug was brand new on and clean on both 3 and 4, where as 1 and 2 smelt much more like fuel and were darker from firing. Looking at buying new coils, any advice? cheers!