After changing the air filter, the next step would be to put new spark plugs in this ride. Spark plugs are usually changed once the respective mileage prescribed by the manufacturer is over. On my Drag Star, I change them every 10’000 km. I use the original NGK BPR7ES units. The procedure is pretty straightforward.
Okay, once you are done with the oil change, what the next thing to look after while servicing your RCZ? The spark plugs, of course! They have to be replaced every 30’000 km. I replaced the original NGK with the equivalent from Bosch (Ref.: 0 242 135 518). Not that I wasn’t satisfied with NGK or that I hoped that the Bosch ones would miraculously increase the engine’s performance, I just wanted to try something else from a well known brand – as long as it was compatible, of course. 🙂
Anyway, (1) pop the hood, (2) release the ignition coil, (2) pull it out, (3) unbold and remove the old spark plug, (4) insert a new one and proceed in the opposite order for the rest. Now repeat this for the remaining three spark plugs.
NOTICE: If you need an extension for your 14 mm spark plug socket, make sure all of the elements of the wrench are taped together, as the spark plugs might be a bit stuck even when unbolt. Fishing out the socket can be quite tedious, trust me…! 😉 It’s a simple solution to a really annoying problem.