Amazon.co.uk: honda izy spark plug- spark plug wrench size honda ,NGK Spark Plug BPR6ES Suit Honda Izy Lawnmowers & Flymo XL500 4.8 out of 5 stars 51 £3.62 £ 3. 62 FREE Delivery Only 15 left in stock. Outdoor Spares Limited NGK Plug & Air Filter Service Kit For Honda Petrol Lawn Mowers IZY HRG415 and HRG465 ...spark plug removal | Honda Foreman Forums19/10/2011· Discussion Starter · #1 · Oct 19, 2011. I'm really serious when I ask this question. I have been trying to get the spark plug out on my Foreman 450 Quad. I know I don't have a 90 degree universal socket to get to it. I'm at the point where I have removed the tank and can access the plug, but none of the SAE deep standard or metric sockets work.