It is the cap that slides over an adjusting screw on the injection pump and is then wired on to act as an anti-tamper deterrent.Found in my engine compartment today.
Nothing obvious amiss.
Boat: Glastron GS249
Engine: Volvo Penta AD31
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Don't know but my assumption is that those coloured tapes on the wiring loom are to identity the correct engine wiring loom to be fitted to your specific boat.Perfect, many thanks for taking the time to reply.
...as an aside, any idea why the red amber green tape - happened to spot my bits of tape have started to come away... was wondering if it's to prevent some wear?