hey i am going to buy a new spark plug for my Yamaha Jog RR and was wondering what would be the best one for the job ? thanks
NO NO NO NO NO whatever one came out of it/the manual says/..... if your burning the stock plugs out/have a 70 kit fitted add 1 to the number on the plug (so if its a br8es jump up to a br9es) if your simply replacing the plug for something to do, dont bother, if the engine runs fine theres no point changing the plug, wait till it needs it. thas a free tank of fuel i just saved you as for iridium plugs in stock ish 50's... just no. what a waste of 9 quid, they wear out 4 times as quick, cost twice as much and literally are only ANY use on REAL high compression high revving engines. your "advice" is really starting to wind me up tbh. this forum is to help people, not just blindly guess as you have nothing to do.