Coil snapped - half stuck on spark plug

Discussion in 'Mechanics Garage' started by UnclePieface, Nov 4, 2017.

  1. Diving Pete

    Diving Pete Member

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    I'm not going to say the above isn't a really good piece of advice

    however...

    Putting in a new coil & plug will either be fine OR not.

    I wouldn't have riden for 100 miles like that (thats what AAA is for) however, thats in the past & i really dont see how you can cause more damage now?

    If there is metal in the bore then its already toast - that ship has sailed.

    Personally, what I would do is plug in a compression tester - forget the endoscope.

    You will either have compression or not.

    If you dont then you are into rebuild.

    If you do then you dont need (yet) a helicoil so then put a plug & coil on it & ride it.
     
  2. slovcan

    slovcan New Member

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    You don't have to remove the head to put a helicoil in a spark plug hole. My Trophy blew out a spark plug years ago while riding to work 75 kms from home. The previous owner or mechanic must have damaged the threads. A mechanic friend had a shop close to my work, so I had the bike dropped there. He checked for damage, drilled out the hole and put in a helicoil. Actually, I'm not sure it was a Helicoil brand or another similar thread repair insert. I was skeptical at first, but never think about it anymore. Like I said, that was years (and many thousands of kms) ago.
     
  3. UnclePieface

    UnclePieface New Member

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    Thanks for the answers everybody. All useful stuff and ultimately I know you're all right. I'm a bit stuck as I have nowhere to store the bike and a professional repair from start to finish is beyond my means at the moment.

    Update on bike.

    Tried the new plug. It won't bite on the threads (or lack of threads) in the head.

    So, the engine/head needs to come off. It's within my capabilities but I think it looks pretty big in man hours.

    Anyone took an engine out? Any particular tips regarding removal?

    Sent from my SM-G935F using Tapatalk
     
  4. Diving Pete

    Diving Pete Member

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    As said before, just go and get it helicoiled it's an easy job with out removing the head...
     
  5. GreginDenver

    GreginDenver New Member

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    Over the years I've had really good, long-term-reliable results with several thread replacement systems (Helicoil, Timesert and one other brand I can't remember the name right now). It's to the point that something as horrifying as a stripped out spark plug doesn't even make me feel worried any more.
     
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  6. UnclePieface

    UnclePieface New Member

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    Mobile mechanic booked.
    Let's see what he says.

    Sent from my SM-G935F using Tapatalk
     
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