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Last January when I picked up my 08 Dragon I was surprised to see Champion Plugs. From past race car days I am not a fan of those type of plugs for fouling /failure rates. They told me that Polaris designed the ignition system to use that specific Champion plug and anything else could possibly void my warranty if a failure was to happen. I was having a real hard time beliving this and changed all plugs to NGKs as there was a direct cross reference to the Champs.
Now while poking around Snowtech website looking for something else I spotted this which should shed some light on my original dilema. The funny part is that it was dated prior to any of the deliverys of the 155 Dragons.
Note from Snotech: According to Polaris, the NGK BPR9ES and NGK BPR9EVX spark plugs are acceptable substitutes for the Champion RN57YCC and RN57YC spark plugs now found on Polaris engines. The NGK plugs seem to have better sealing gaskets that reduce seepage anytime the plugs have been removed and reinstalled. The ”EV” is a premium fine-wire electrode version of the “ES”.
Which brings to light another question, what is the difference between the Champion RN57YC and RN57YCC? According to Polaris, the RN57YC is also an acceptable replacement for the more commonly used RN57YCC, and that engine damage will not result from this substitution. The CC plug has a longer copper ground electrode for higher heat conductivity, with more coverage (longer ground electrode) for increased plug life, and reduced RFI (radio frequency interference). The CC plug is the better choice, but you can run the single-C version if needed.
Now while poking around Snowtech website looking for something else I spotted this which should shed some light on my original dilema. The funny part is that it was dated prior to any of the deliverys of the 155 Dragons.
Note from Snotech: According to Polaris, the NGK BPR9ES and NGK BPR9EVX spark plugs are acceptable substitutes for the Champion RN57YCC and RN57YC spark plugs now found on Polaris engines. The NGK plugs seem to have better sealing gaskets that reduce seepage anytime the plugs have been removed and reinstalled. The ”EV” is a premium fine-wire electrode version of the “ES”.
Which brings to light another question, what is the difference between the Champion RN57YC and RN57YCC? According to Polaris, the RN57YC is also an acceptable replacement for the more commonly used RN57YCC, and that engine damage will not result from this substitution. The CC plug has a longer copper ground electrode for higher heat conductivity, with more coverage (longer ground electrode) for increased plug life, and reduced RFI (radio frequency interference). The CC plug is the better choice, but you can run the single-C version if needed.