[UpnorthChad]

Hello everyone, first post for me.
Long time sxs owner (6 Polaris rzr's since 2011) . I just purchased a 2022 XX and the water pump seal went with 5.5 hours on it, it probably never seated from the factory 🤷‍♂️

Anyway.. my brother has a 2018 with a 2019 engine, every other time we go riding it fouls the spark plugs. We change them and it's good for a couple rides. Any ideas what it's causing this. I personally think MAP sensor, but he argues and here I am, lol..
Is this a common issue with the XX or anything?

 

[drpalo]

As far as I know, this is not a common issue.

 

[UpnorthChad]

As far as I know, this is not a common issue.

Ok 👌

 

[70Bones]

Is it burning oil?

 

[UpnorthChad]

Is it burning oil?

No, it is not burning oil.

 

[70Bones]

Things that can foul a spark plug are: burning oil; excessive fuel consumption; excessive idling, or incorrect spark plugs which are too cold. Does he have exactly the same spark plugs as you? He might want to try plugs that are 1 heat range hotter.

 

[18XX]

Things that can foul a spark plug are: burning oil; excessive fuel consumption; excessive idling, or incorrect spark plugs which are too cold. Does he have exactly the same spark plugs as you? He might want to try plugs that are 1 heat range hotter.

What plug do you recommend using??
I think NGK CR9EB is factory

 

[UpnorthChad]

What plug do you recommend using??
I think NGK CR9EB is factory

Starting with part # BKR6E-11 (heat range 6), a colder plug would # BKR7E-11 (heat range 7), a hotter plug would be # BKR5E-11 (heat range 5).

NGK Heat Range Example

 

[Grey Rider]

I run CR9EIX iridium and they run very clean.

 

[Elvenhome21]

Describe what you mean by fouling plugs. For my case I often have a misfire/dead cylinder for about 5 min after it's been sitting for a couple weeks and the battery is weak but will start engine. Cranking volts is 9.5. This causes one cylinder to go dead until engine gets heat / charge battery and you restart engine. Then the coil will start firing normally again.

I've changed plugs and always thought it was a bad coil but it always "fixed" it self while swapping coils and plugs to find the offender.