A great idea!  Fit this between your spark plug and H/T lead to see if things are sparking as they should be from your distributor/leads. Price is for one -...

Brand new high quality Inductive Ignition Timing Light with Xenon Bulb. Suitable for negative or positive earth vehicles with distributor ignition system. It has a check light to warn against...

Professional timing light (Red). - Full digital advance control- Tacho function suitable for 2 and 4 cylinder engines - Ok to 8000 rpm- Bright bulb- HT lead inductive pickup. Great...