Do it yourself
Frequently asked questions about cars and motorcycles
Today's guide shows you the steps to remove and replace the engine spark plugs on a Harley Davidson Iron 883 motorcycle. First, place the bike on a stand and disconnect the lead or connector from the spark plug (in this case, there are two cylinders and therefore two spark plugs); then use a socket spanner with an extension to unscrew and remove the spark plug, as shown in the video. At this point, hand-tighten the new spark plug, ensuring it is the correct type and has the same thread pitch, then tighten it with a spanner to the torque specified in the instruction manual!

Updated on 21 July 2026 by ScegliAuto

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How to Replace the Coolant in the Piaggio Medley 125?

To replace the coolant in the Piaggio Medley 125, loosen the screws securing the side grille of the scooter to remove it and access the radiator underneath. At the base of the radiator, locate the drain plug, which must be unscrewed to allow the coolant to flow into a suitably positioned container. Next, open the under-seat compartment and locate the coolant refill cap: by opening this cap, you can insert the new coolant.

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