davdeborg Posted July 9, 2013 Report Share Posted July 9, 2013 hi whats the best plug and gap for 350t currently got bp6es came with bike but not sure if its right its a 151 model 1975 350 cheers Quote Link to comment Share on other sites More sharing options...
bullylover Posted July 10, 2013 Report Share Posted July 10, 2013 Hi davdeborg. The best spark plug is either a NGK BP5ES or a BP6ES so what you have is fine. They seem to like a plug gap of .40 mm which is the same as the points. That is also what Bultaco recommended as well. In imperial measurements that is 15 thou. Graham. 1 Quote Link to comment Share on other sites More sharing options...
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