[Crazzy450z]

Good day everyone, we are new to the forum.. We have a Sportsman.. Its been good, but not great so far.. We have just had the recall performed.. but previous to that we had issues with it starting.. Turns out it fowled the spark plug.. with less then 4 hours on the motor.. We are looking forward to using this little beast..

 

[FPD218]

to the forum

 

[Gmartino100]

Good day everyone, we are new to the forum.. We have a Sportsman.. Its been good, but not great so far.. We have just had the recall performed.. but previous to that we had issues with it starting.. Turns out it fowled the spark plug.. with less then 4 hours on the motor.. We are looking forward to using this little beast..

450’s are known for fouling those crappy Champion plugs. Get yourself a set of NGK’s and a spare set to keep in the storage box and you’ll be good to go.

 

[Crazzy450z]

That's great info.. Do you know the part number for NGK and how many??
Thanks,

450’s are known for fouling those crappy Champion plugs. Get yourself a set of NGK’s and a spare set to keep in the storage box and you’ll be good to go.

 

[wave_runner]

Wow. I've put just over 100 hours and around 1,900 kms on my 2021 and have never had an issue with a fouled plug. I haven't had any issues whatsoever actually, but I guess it never hurts to have a spare plug along for the ride.

 

[Hondov65]

That's great info.. Do you know the part number for NGK and how many??
Thanks,

Autolite 5923 prone to fouling do a search key words Autolite 5923

NGK BKR6E or BKR6EIX the latter being an Iridium plug.a better plug🙂

 

[Crazzy450z]

I picked up a couple NGK BKR6E's to have a few on hand.. We are using the machine on our farm property, so there are a lot of short runs.. The dealership's service department mentioned that this is what causes the fowling.. Polaris must have the EFI set up on the rich side..

Autolite 5923 prone to fouling do a search key words Autolite 5923

NGK BKR6E or BKR6EIX the latter being an Iridium plug.a better plug🙂

 

[latebird]

Cold starts are fuel rich - it takes 20 to 30 minutes of continuous normal operation above 2500 RPM after the engine is at operating temp to burn off the carbon deposits caused by one cold start.

 

[Augustine909]

Welcome to the forum

 

[Jb12182]

What were the symptoms of the fouled plug? I have had issues with mine stalling after going in reverse and stopping to shift into gear. Also stalled when I was revving it in park. Wondering if I’m having the same issue.

 

[Hondov65]

What were the symptoms of the fouled plug?

Hard starting/not starting
Letting machine idle 5+ minutes without riding
Starting just to hear it run.
Riding at low RPM's
Unburned fuel will foul a spark plug.
Normally hapens to new owners/riders.

Ask me how I know.

 

[Crazzy450z]

Yep.. We have all of that.. Actually still do with the new plug installed. I've been told that getting the engine good and hot is important.. Also been told the NGK plugs are better.

What were the symptoms of the fouled plug? I have had issues with mine stalling after going in reverse and stopping to shift into gear. Also stalled when I was revving it in park. Wondering if I’m having the same issue.