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How to replace the spark plug on the Triumph Bonneville?

Model: Triumph Bonneville
Part: Spark plugs

Video tutorial

To replace the spark plug on the Triumph Bonneville, locate its housing: this is found between the two black covers on the right side of the bike, just under the seat. Here, you will find the coil connected to the spark plug, which must be disconnected: once the coil is detached, use a socket spanner to remove the old spark plug from its housing.

After replacement, insert the new spark plug into its place and reconnect it to the coil that was previously disconnected.


Updated on 30 May 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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