SOHC.co.uk Forums > CB750

CB750 F1 spark plug needs Helicoil

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SumpMagnet:
For a plug thread...Timeserts are the way to go.

Plugs are in and out far more often than a lot of fixings, and the area is getting a LOT of heating and cooling.

With the head off, you can get a good look at the other plug threads, and make sure all is well there. Done in situ, I would laways worry some swarf will get left behind in there, and damage the bores when you run the engine. Probably not going to happen.....

Priddy:
Thanks to all, sounds like Timeserts are the obvious choice, always used Wurth kit when in the motor trade so gives me confidence!

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