At what timing/milage should I be changing spark plugs? 2011 RT

[yankeeDoolte]

My 2011 RT is in the shop for service work. At what timing/milage should the spark plugs be changed? Have 18250 +/- on the original plugs.

[BLUEKNIGHT911]

I've got over 75,000 mi on 14 RT .... soooooooooooooooooooo I'm thinking about changing them ...... Mike

[KX5062]

IIRC, you're coming up to a valve check interval, so you can easily do both the check and replace the plugs and wires at the same time, which I think is the manual's recommendation. On the twin cylinder engine, the spark plugs are easy to get to, unlike the ACE 1330.

[BajaRon]

The manual says to check valve clearance. But it is highly unlikely that you will need any adjustment at all. Now or in the foreseeable future. Unless you just like tinkering. I would skip that one. If the valves are out, you can hear them ticking.

The spark plug wires go away much sooner than the spark plugs themselves. I don't remember if the 2011 came stock with iridium plugs or not. BRP started out saying that Iridium plugs would not work in this engine. A patently ridiculous statement. Then, a few years later, BRP started sending them out from the factory with Iridium Spark Plugs. Go figure...

In any case. If you change just the spark plugs. It will run worse when you're done than before. Again, because the OEM spark plug wires are of such poor quality. Manipulating them to replace the spark plugs degrades them even more.

I would not say that changing spark plugs/wires on the 998 is an easy task. Not bad once you remove the airbox. But the airbox can be a pain.

[ARtraveler]

I would listen to what Baja Ron says.

[davev1pa]

If it ain't broke.....

[Isopedella]

https://www.spyderlovers.com/forums/...ht=spark+plugs