Question about 2000 BMW R 1100 R

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Spark o guys, need a bit of advice on the best way way to fix my spark plug threads. the plug goes in like halfway, then starts to tighten, but never fully tightens, just turns. should i run a thread chaser thru it? tap it? helicoil? and my followup question, whats the best way to prevent whatever metal shavings that u get, from falling into the cylinder?

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You're going to need to helicoil it. If you can flip the engine upside down. If you can't do that, then apply grease to the drill bit, then the tap when you're cutting the threads. Go very slowly. Alternately snap-on and MAC tools make specially designed thread cutters that compress, go into the hole, then expand outwards to cut the threads. They have little cups to hold the shavings, but cost about $100 each.

Posted on Nov 20, 2008

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How to repar stripped spark plug threads/ where to purchase?.......???????


Helicoils are the best "at home" repair I know of for stripped spark plug threads in a head.
http://www.stanleyengineeredfastening.com/brands/heli-coil/screw-thread-inserts

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Removing seized spark plugs


ok if ur bike was running before replace the plugs and warm it up to a hot temp and then try removing the plug adding lots of WD40 use a proper spark plug socket that connects to a extension bar and onto a socket ratchet ( not from the standard tool kit that comes with the bike) keep the set up nice and straight over the plug and turn it anti clock wise .... when you need to start using lots of pressure do this by one hand on the extension bar and the other on the ratchet . if this fails you will need to get some metal pipe to slip over the ratchet handle to increase the leverage ( maybe a 12 inch pipe) the plug will come out if not give someone else a go at it that is more handy than you are. why this has happened is because who ever installed the plug over tightened it . the recommended way is ...................... to add very small amount of engine oil to plug threads, using only the plug socket and extension bar by hand thread the plug back into the motor until it stops , then add the ratchet onto the extension bar and tighten until you feel it start to tighten up then you can nip it a quarter turn and thats it .... done .... There is a copper washer on the bottom of the plug that squashes together and helps seal the plug and causing that to be completely flattened from over tightening will cause it to seize and jam your plug, if not it has been cross threaded and removing the plug will damage the thread in the motor ! but you have no choice ..only to remove it . ( the thread then can be repaired ) you will know this by the striped aluminium all around the plug thread when you remove it .To avoid this happening is why you start to replace your plug by hand before using the ratchet .

Jul 26, 2014 | 1999 kawasaki ZX-9R Ninja

1 Answer

Best way to fix a stripped engine oil drain plug on a kawasaki klr 650


Yes, yes, and yes.

A Time-sert is the best, as they actually have kits specially for drain plugs.

They're better than heli-coils, because they give full thread strength.
Also, a heli-coil's alright for something like a stud that you'll put in once, then leave alone.
But it it's something that you'll remove and reinstall time after time (like a spark plug, or a drain plug), eventually the heli-coil starts to UNcoil on you.

When you install the Time-Sert, the end threads (the first to go into the threaded hole) are expanded outward into the threads it screws into, locking it into place, but still allows removal with a EZ-Out if down the road you damage it.
For a drain plug I'd put a dab of thread dope (the paste, rather than the tape) on the threads just for a little added insurance against leakage.
Time-Serts come in different lengths, so you can measure and get one that is shorter than the material thickness you are installing it in so it doesn't protrude, which allows for full drainage of the oil.

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1 Answer

Not starting


Look under the gas tank near the top of engine - find a large black wire (about size of a pencil in thickness) it will end at the top of your spark plug, 1 on each side of the engine on my 650, first remove rubber boot, second apply plug socket (should be one in your tool kit) if not buy one to fit. A spark plug socket has rubber inside it prevents damage to the plug, remove spark plug, remember righty tighty and lefty loosey, check the gap set on the plugs, just ask the guy at the store to check it when you buy them, you will learn how to do it if you just watch, insert new plug using your fingers only, dont force it! you want to start the threads correctly and not cross thread the spark plugs, you should be able to get several turns by hand/fingers alone - tighten - but dont over tighten the spark plug, it not good. Then pop the boot back on the new plug and repeat on the other side of the bike. NOTE: I have to remove the aluminum insulator on top of the new spark plugs to put the spark plug boots back on, its threaded also so lefty loosey etc, you may need to also. Charge the battery while you are doing this and have some starting fluid/ether nearby. if the bike is cranking but wont fire you have other issues.

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1 Answer

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You can have this repaired professionally, not cheap but will be good and will settle your mind as you drive down the road ... it is cheaper than a new head.

Jun 05, 2010 | 2006 Harley Davidson FLHR Road king

1 Answer

My Kawasaki GPX speedo cable has come loose from where it should attach up behind the faring cover. The little metal squarish part is still poking out from the plastic cover & the silver bit that you...


Shelly this is a relatively easy fix if you feed the cable back up under the fairing locate the back of the speedo you will see a threaded piece protruding from the back of it simply place the inner cable that is the sqare metal bit intothe middle now screw the silver bit on about half way give the front wheel a few turns just to locate the cable correctly into the speedo now tighten the silver bit fully there you go fixed & you did it all the best Geoff

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Cross-threaded spark plug threads on 2007 stratoliner 1900. right , rear cylinder. What can be done without removing the head?


You need to get hold of the correct "TAP", with a get deal of care re-tap the original thread. Then replace the spark plug and all should be well.

Feb 02, 2010 | 2007 Yamaha Stratoliner

1 Answer

Spark plug pop out when warmng up and wat tighten


Either it is the wrong spark plug or you have stripped threads.

If the treads are stripped, you can buy a kit to fix it or re-tap the hole. Worst case scenario, you need a new head.

Nov 18, 2009 | 1999 Honda CBR 900 RR Fireblade

1 Answer

Spark plug poped ot of my 99 crb 900 and want go back in like the threds are mesed up


Yes, the threads did get damaged when the plug popped out. Most likely, the plug was not in properly or tightened so that there were several threads in play. Take your plug to any autoparts store and either borrow or buy a tap of the proper thread size to recut the threads in the cylinder. this is a bit tricky because it has to be straight, so if you are not comfortable doing this yourself have a bike shop do it. Good luck. Joe

Nov 18, 2009 | 1999 Honda CBR 900 RR Fireblade

1 Answer

Erhm well yea i was rideing my nsr 125 other day and then it lost power and stoped i checked under the tank and my spark plug was out how could that of happend?


Hello;
Your spark plug was loose from not being seatewd fully. The compression finally blew it out. With luck you can screw and tighten the spark plug back in. If the threads stripped out you can chase them or if real bad you can install a thread insert.
Thanks;
Rich
RPM Northwest

Jun 11, 2009 | 2001 Honda NSR 125 R

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