Spark Plug Debate.

[Jake]

Im running 0.96-1.05 bar on the twins ! The 9\'s where being blown out at top end. Saw some really good returns swapping the plugs !

Shaun

Yeah I found the same thing with 9\'s.  What heat range are the plugs you\'re running now?

[Tintin]

Just got mine tuned by Pip , engines just been run in ( large street port ) , non sequential twins , I thought I\'de be okay with 9\'s all round maybe 10\'s in the trailing , after the first couple of runs Pip disapeared and came back with 10\'s and 11\'s , suggested I change to 10\'s all round in the winter

Only running 0.9 bar so I was rather surprised