which plug works best on '04 800 H.O.?

[Summitstef]

Just a quick question for you all. What plug are you supposed to be using on a '04 summit 800 H.O. ? BR9ES, BR9ECS, BPR9ES, or BR9ECS-5???

 

[skidoojames151]

pretty sure its br9ecs

 

[bigmac83]

I have on '04 800 HO too. BR9ECS is what I've always used and it's what my dealer recommends. Hope this helps!

 

[aux187]

Whats the difference between the BR9ECS and the BR9ECS-5??? I run the BR9ECS on my 04

 

[whitefish]

BR9EYA work fine and cost $2 each

 

[Circus Midget]

Whats the difference between the BR9ECS and the BR9ECS-5??? I run the BR9ECS on my 04

I asked my dealer that same question last week and they couldn't tell me

 

[badass1000]

br9ecs is what doo recomends. br9ecs has a little bit beefier and shorter ground strap then the normal br9es. I buddy of mine called and talked to a tech at ngk and was told the br9ecs was specifically made for ski doo engines. Something about the harmonics of the ski doo engine was causing the ground strap to brake off the br9es. It doesn't happen very often, but can cause alot of damage if it does. I was going to run the br9es plugs because they are cheaper, but I will pay a few extra dollars for the br9ecs and not take the risk.
My buddy was calling ngk specifically about getting iridium plugs for a doo. they make a br9eix plug that any one can order, but it has the ground strap that is known to brake. njk does make a iridium plug for the doo based off the br9ecs plug with the different ground strap, but it is a dealer only item.
ski doo part number: 515176728
ngk br9ecsix $15.50 retail.
they do make a br9ecsix-5 also. I do not know what the difference is between those two plugs.