I just went into the dealer to change plugs, on my 09 xp. Recommended is the br9ecs... The dealer sold me the br9ecs-5 and told me the -5 has replaced the ecs??? The gap is different, the -5 is 20mm compared to 36mm... That just dont make sense to me? Is this correct or is the ecs the recommended?? Thanks, chad
Which plug? ecs or ecs-5
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Your going to want the Br9ecs(.028-.030 gap), that what I've been told and run.
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snowmobiler
Well-known member
mine said -5 and regap them.wrong!!!most dealers are f###ing idiots(atleast everyone i go to) and dont even know what plugs to run.and its even in the owners maual
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NGK will sell different plugs for different gaps. You can run either but if you choose the ECS-5, you should re-gap to .031" from the .018" that it comes with. Even though NGK comes with the nice cardboard sleeves to protect the gap, I recommend checking it anyways.
Is the electrode different in the ECS and -5? Or just the gap. I was told not to regap from .018 to the .031 by the dealer, that it is to far to open? I think they were just out of the ECS and to sale plugs at $7 a pop they told my this BS....
I just spoke with NGK to clear up this issue.... The BR9ECS has a .032 gap and the BR9ECS-5 has a .018 gap. The plug is exactly the same other than the gap. Adjust that gap to preference and run it. A solid steel gauge from the auto parts store is easiest to gap instead of using the pheeler gauge to open that gap up.
You want the NGK plug -> Product # 4677 (BR9ECS) .030 gap
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snowmobiler
Well-known member
this is off the ngk website...
(NGK doesn't recommend adjusting the spark plug gap < or > .008". The reason for this is the ground electrode and center electrode won't line up properly, hindering spark plug performance.)
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