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1981 Honda CB750K Spark Plug Service Tools

The available electrical-service tool is a spark-plug wrench. Its thin-wall socket and tuck-away handle address plug access rather than circuit diagnosis. Compare the wrench’s 18mm working size with the plugs fitted to your motorcycle before ordering it for your next service.

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Honda CB1100 CB1000 CB900 CB750 spark plug wrench

Honda CB1100/CB1000/CB900/CB750 Spark Plug Wrench

$5.95 USD
35-0078
Reach deep CB plug holes with this "Tuck Away" 18mm Spark Plug Wrench. Works on 18mm spark plugs, 160mm overall, thinwall design fits into...
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1981 Honda CB750K · Electrical Tools Buying guide

Check the plug and the space around it

The listing specifies an 18mm wrench with a 160mm overall length. Those details help you assess the installed plug and available access, especially if surrounding parts have been changed.

Parts to consider

Honda CB1100/CB1000/CB900/CB750 Spark Plug Wrench Tuck-away spark plug wrenchAn 18mm thin-wall plug wrench, 160mm overall, with a handle that tucks into the socket. The listing includes CB750 1979–82 applications.View part

Working size comes first

The wrench listing is tied to 18mm spark plugs. A motorcycle fitment entry does not describe every replacement plug that may have been fitted over the years. Read the installed plug’s specification and compare its hex size before deciding this is the tool for it.

Keep the scope of the tool clear

The folding handle is a storage and access feature described by the seller. This is a mechanical plug wrench, not a tester for ignition output or wiring faults. Order it for plug removal and fitting, and choose diagnostic equipment according to the problem you are investigating.

Common questions

What size plug wrench is offered here?

The product description specifies an 18mm working size and 160mm overall length, with a thin-wall design. Check the installed plug’s hex and the available space; the motorcycle year alone does not identify an unknown replacement plug.

Does this product test spark or electrical circuits?

The listing describes a spark-plug wrench and its tuck-away handle. It does not describe electrical testing functions. A circuit or ignition diagnosis calls for equipment selected for that particular test.

Does the wrench size identify which spark plugs to buy?

The 18mm measurement describes the wrench’s working size, rather than the plug’s thread or heat specification. Choose replacement plugs from their own fitment information, then compare their hex size with the wrench before ordering.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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