prdicon

Which one would you recommend.

I was thinking Polaris carbon clean or Seafoam.

Yes. Spark plug is brand new. Gap is accurate.

My 2018 Polaris Sportsman engine operation feels jumpy when I ride. It happens when I am trying to keep constant speed and throttle is fixed position. ATV will misfire and feel jumpy. Not smooth..
Idle is good more or less. Will always crank up on first attempt.

I am thinking to start using carbon cleaner.

Any different between the Polaris carbon clean and Seafoam?

Polaris carbon clean
https://a.co/d/ee529C9

Seafoam

Perfect. Thanks 

How can I remove the plastics to get to the upper bolt of the strut?

I wanted to replace the wheel bearings and ball joints but we with the strut still connected to the frame it's way more difficult.

Better to remove the struts and put it on a workbench and wise.

I'm not sure how to do it. which plastic should I remove and how to remove them?