What spark plugs on 06 RMK 755?

Dimebag · Oct 30, 2009

Hi. Guess its the same as the 900, so i post it here;

My dealer put in NGK BR9ES spark plugs in my sled after the engine rebuild.

Is that really the recommended plugs?

Im sure i heard something about BPR9ES, or BPR9ECS ?

Whats the best for this engine?

Thanks, and Have a nice weekend!

allblowdup · Oct 30, 2009

Champion rn57yc plugs are recomended and the cross to NGK bpr9evx plugs. Some people say the will run fine with br9es but I have seen the difference on the dyno.

Dimebag · Oct 30, 2009

And what is the difference on the dyno ?

POLZIN · Oct 30, 2009

The BPR9ES has a protruded electrode whereas the BR9ES does not and will not run as well. I use the BPR9ES because I can get them locally and I have had better luck with them rather than the Champion RN57YCC that is used in most stock Polaris sleds.

Ralphie · Oct 30, 2009

I have an 06 700 and run the NGK BPR9ES im not sure if thats the correct plug but that is what was in it when I got it. Seems to run fine

donbrown · Oct 30, 2009

POLZINHUNTER said:
The BPR9ES has a protruded electrode whereas the BR9ES does not and will not run as well. I use the BPR9ES because I can get them locally and I have had better luck with them rather than the Champion RN57YCC that is used in most stock Polaris sleds.

Try running these two and whichever works best keep it.

Plugs are hit and miss so use the one that works.

SD Coyote · Oct 31, 2009

donbrown said:
Try running these two and whichever works best keep it.

Plugs are hit and miss so use the one that works.

I agree. I use the champions that came in my sleds because they have worked well for me. The "P" in the NGK plug stands for projected insulator. The advantage of this is a wider heat range capability. It will tend to heat a little faster when cold and stay a little cooler when hot. When compared to a BR9ES you will notice the white insulator comes down a little more over the electrode.

Dimebag · Oct 31, 2009

Think i'll go with the BPR9ES after im finished with the engine break in then.

Never had any problems or bogging running BR9ES, as i know about.

SD Coyote · Oct 31, 2009

Dimebag said:
Think i'll go with the BPR9ES after im finished with the engine break in then.

Never had any problems or bogging running BR9ES, as i know about.

I would change them right away if I was breaking in a rebuild. The rebuilt motor will run a little hotter and could use the BPR installed for a little added burn down protection.

Dimebag · Oct 31, 2009

Thats actually a good idea. Have been out cuddling with the sled now, regeared and ready for snow..

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What spark plugs on 06 RMK 755?

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