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Spark plug nightmare

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Pauarc:
Out last night all going okay then I could hear a hissing noise from the front of the engine look this morning blown a spark plug thread looks like I’ve got to take engine out not a great night any one use the spark plugs inserts where you re-tap it and put an insert in

Laverda Dave:
A few people have used these kits, cheap and easy to use. Make sure you use plenty of grease on the tap to trap as mucg swarf as possible whilst tapping the thread. Check the plug size and thread as well as there are a few kits out there.

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Matt_Harrington:
On a 750, can you just remove the head whilst the engine is in place in the frame?

McCabe-Thiele (Ted):
A local engineering firm used to do these when I was in the car trade. They did a mobile service to garages etc, more recently they withdrew the mobile facility as they were so overwhelmed with private customers restricting the mobile service for plant machinery only. They used some sort of suction process as well as grease to stop debris dropping inside the cylinder head.

Spitfire:
Which plug is it, if it is the inner plug then it would probably be better to do it engine out, unless your frame's had the modification to remove the section above the head you cannot take the head off in the frame.
Good luck.

Cheers

Dennis

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