Yamaha Grizzly 450 - spark plug replacement #1805

The first of a number of service related workshop tasks on a 2014 Yamaha Grizzly 450 ATV. In this video I show you the correct procedure on replacing the spark plug. In the video I cover checking & setting the plug gap, tightening torque & also a couple of tips & tricks that make the job a little easier too... I have also included a chart showing what the colour of the spark plug electrode means in relationship to the engine's running - a simple and really useful way to check the condition/tune of your engine. Any questions or comments just leave them blow and I'll do my best to get back to you shortly... Andy Mechanic!