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Spark plug problems

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chrisf1:
Hi again everyone the problems have started as some of you may have noticed by my previous posts I have bought a 1971 CB750 K1 chopper and have been out in the garage tinkering getting it ready or so I thought to run anyway changed oil and filter, fitted battery, first problem the bike is a chopper and has no dash panel lights so I do not know if I have any ignition or not and it did not turn over, but the worst is to come I then decided to renew the spark plugs and number 2 just spins round and round so it looks like the head is going to have to come off, if anyone knows another way round the spark plug problem please advise many thanks Chris

neat street:
Sorry to say, the only safe option is to take the head off as you do not want any swarf getting into the head! you then have a choice of either helicoil, or weld a plug in and re-thread? other gents (or ladies), may have other suggestions.
John

Nurse Julie:

--- Quote from: neat street on May 20, 2017, 01:48:17 PM ---Sorry to say, the only safe option is to take the head off as you do not want any swarf getting into the head! you then have a choice of either helicoil, or weld a plug in and re-thread? other gents (or ladies), may have other suggestions.
John

--- End quote ---
This Lady has no other suggestion  ::) ::). Don't forget the engine has to come out to get the head off (unless the top tube of the frame has been adapted previously to allow for this)

hairygit:
Looks like someone has already hacked away the crossbars either side of the main tube! :o

Trigger:
If the crossmember of the frame is missing I would contact the seller, I would also state to the seller about the spark thread.

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