Guest Posted January 27, 2011 Share Posted January 27, 2011 (edited) My friend who likes my bike [Pioneer 125] says the current spark plug in it is rubbish [it's made by 'Torch'] and i should buy a good new one. Was lookin on website and there are 2 choices for my bike:1. NGK D8EA Spark Plug (2120) £1.492. NHSP LD D8TC 101 Spark Plug £1.59I don't know which is the best, so please help me. Also, i basically don't really know what the spark plug even does...so a little explanation would be really grateful too. Thanks ^^The other thing is, ive read everyone says upgrade the front sprocket to a 16T. What does this mean, and what will it improve on the bike? Thank you!! Edited January 27, 2011 by Anonymous Quote Link to comment Share on other sites More sharing options...
Guest Posted January 27, 2011 Share Posted January 27, 2011 Stick with NGK, they're the industry standard. Quote Link to comment Share on other sites More sharing options...
Danny-B- Posted January 28, 2011 Share Posted January 28, 2011 A new spark plug wont make a massive difference (in fact you probs wont notice much), however it the NGK is a better plug ...The spark plugs job is to initiate the explosion in the engine making the engine spin ... so its fairly important ... Your bike makes the spark plug "spark" at the right moment just as fuel and air (mixed by the carbs) is forced into the engine ... Google how an engine works.Upgrading from what to a 16t sprocket ? ... im guessing from a lower to higher tooth ... in which case it should increase your top speed slightly but you will loose acceleration Quote Link to comment Share on other sites More sharing options...
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