Results 1 to 3 of 3
Thanks Tree2Thanks
  • 2 Post By Sideays

Thread: Thread about threads

  1. #1
    Baby Twin
    Join Date
    Apr 2016
    Location
    London
    Posts
    2

    Cool Thread about threads

    First post from a newbie..

    Bike has been running fine since I've had it, but out of the blue decides it doesn't want to start.
    Turns over but won't fire.
    Pump primes and I can smell petrol. It's been on an optimate all its life.
    So I started with the the plugs.
    Plugs are all wet and the gaps are too big.
    Bought a new set of plugs.

    3 go in fine, but the outer front cylinder one will not bite the thread. So I start thinking that the previous owner has cross threaded the plug. Try it really carefully by hand, but it just won't go in.

    Options are to get the bike to a garage to try and re cut the thread, or buy a back-tap threading tool. But looking at the space above the cylinder and the average length of a back-tap tool, it ain't gonna fit.
    I'm suddenly thinking " ugh the head has to come off". Engine out of the frame
    So it's all getting really expensive in my head.
    My home made thread chaser wouldn't bite the thread either.

    As a last resort I was trying to think of a way of cleaning the threads without dropping a load of shite into the cylinder head, and I came up with this, which worked :-)
    Get some cotton buds, and a thin paint brush, and sellotape a bud to the end of the brush. Then coat the bud with some grease, and very gently dab the threads, so that the grease acts as a magnet for the crap in the threads. Don't brush, just lightly touch it. Then change the bud and repeat, until less muck is on each bud.Be patient, if you rush it the dirt will fall. What you want is the grease just to pick it up. Anyway, long story short, it worked, I cleaned out all the remaining grease, put in the old plug and it bit straight away. In went the new plug.
    Just need to explain to my missus where all the buds went.
    Thanks from Rizla and 2nd Chldhood

  2. #2
    One Litre Duc Eater Rizla's Avatar
    Join Date
    Sep 2013
    Location
    East Scotland
    Posts
    928
    Quote Originally Posted by Sideays View Post
    First post from a newbie..

    Bike has been running fine since I've had it, but out of the blue decides it doesn't want to start.
    Turns over but won't fire.
    Pump primes and I can smell petrol. It's been on an optimate all its life.
    So I started with the the plugs.
    Plugs are all wet and the gaps are too big.
    Bought a new set of plugs.

    3 go in fine, but the outer front cylinder one will not bite the thread. So I start thinking that the previous owner has cross threaded the plug. Try it really carefully by hand, but it just won't go in.

    Options are to get the bike to a garage to try and re cut the thread, or buy a back-tap threading tool. But looking at the space above the cylinder and the average length of a back-tap tool, it ain't gonna fit.
    I'm suddenly thinking " ugh the head has to come off". Engine out of the frame
    So it's all getting really expensive in my head.
    My home made thread chaser wouldn't bite the thread either.

    As a last resort I was trying to think of a way of cleaning the threads without dropping a load of shite into the cylinder head, and I came up with this, which worked :-)
    Get some cotton buds, and a thin paint brush, and sellotape a bud to the end of the brush. Then coat the bud with some grease, and very gently dab the threads, so that the grease acts as a magnet for the crap in the threads. Don't brush, just lightly touch it. Then change the bud and repeat, until less muck is on each bud.Be patient, if you rush it the dirt will fall. What you want is the grease just to pick it up. Anyway, long story short, it worked, I cleaned out all the remaining grease, put in the old plug and it bit straight away. In went the new plug.
    Just need to explain to my missus where all the buds went.

    Nice first post bud

    Useful info there.

  3. #3
    AMA Pit Boss grin factor's Avatar
    Join Date
    Aug 2009
    Location
    Sunderland
    Posts
    4,938
    Genius.
    Could well come in handy for many others. Cheers for posting.
    Pleased it worked for you.

Similar Discussions

  1. how to post link to old threads
    By the doctor in forum Guides
    Replies: 3
    Last Post: September 17th, 2014, 04:27 AM
  2. A racing thread, anyone ???
    By Nob in forum Racing
    Replies: 42
    Last Post: June 10th, 2011, 12:07 PM
  3. Post on all threads at once to get name on em all
    By nobpb in forum Aprilia RSV Tuono
    Replies: 8
    Last Post: February 25th, 2011, 12:47 AM
  4. first thread, be gentle with me
    By biker1 in forum Aprilia RSV Tuono
    Replies: 3
    Last Post: January 22nd, 2011, 10:51 AM
  5. Fud of the day thread
    By Nob in forum Pictures
    Replies: 30
    Last Post: December 16th, 2010, 07:54 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


SEO by vBSEO 3.6.1