Broken Spark plug?

Yasko · June 7th, 2011, 08:27 PM

My brother had a problem with his bike... I got an email form him

"While changing the plug out & inserting the new one, I overtightened it to the point where it broke off into the opening, the part the sock was on came off the part w/the threads are in the bike"

Can anyone offer any suggestions???

kkim · June 7th, 2011, 08:32 PM

what bike?

again, how much of the plug is stuck in the head?

Bsmith · June 7th, 2011, 10:41 PM

How do you over tighten the plug that much? I would think the threads would strip first. Like Kim said what bike? If it's well and truly broken time to remove the head.

Racer x · June 8th, 2011, 01:30 AM

10 mm plugs will snap off leaving the threads in the engine. One of those easy outs that is made to remove brokenm bolts works. There is already a hole down the center so you don't have to drill it.

k-os · June 8th, 2011, 04:24 PM

Quote:

Originally Posted by Racer x

10 mm plugs will snap off leaving the threads in the engine. One of those easy outs that is made to remove brokenm bolts works. There is already a hole down the center so you don't have to drill it.

A long left handed drill bit would also probably work just as well.

CynicalC · June 8th, 2011, 06:33 PM

Quote:

Originally Posted by k-os

A long left handed drill bit would also probably work just as well.

They're both specialty tools that most people wouldn't have around to begin with. If you have to buy one, I'd go with the easy out. However there are more primitive methods he could try before having to buy anything. But one would need a clear picture of the situation to plan a course of action.

Racer x · June 8th, 2011, 08:03 PM

You can get the easy out from home depo. They have a square end so a 12 point socket with some tape to keep it from falling off the socket worked for me.

Yasko · June 8th, 2011, 08:19 PM

Thanks for your help everyone... The bike is a 250cc scooter, and he was able to remove it today...

Thanks again...

CmichRider · June 8th, 2011, 08:39 PM

Quote:

Originally Posted by Yasko

Thanks for your help everyone... The bike is a 250cc scooter, and he was able to remove it today...

Thanks again...

...I saw a 500cc scooter the other day, just about cried.

That's good that he was able to get it though!

June 7th, 2011, 08:27 PM	#1
Yasko Texas Newbie Name: John Location: D/FW Texas Join Date: Sep 2010 Motorcycle(s): 07 Ninja EX250, 07 FZ6 Posts: A lot.	Broken Spark plug? My brother had a problem with his bike... I got an email form him "While changing the plug out & inserting the new one, I overtightened it to the point where it broke off into the opening, the part the sock was on came off the part w/the threads are in the bike" Can anyone offer any suggestions???

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June 7th, 2011, 08:32 PM	#2
kkim Join Date: Nov 2008 Posts: Too much.	what bike? again, how much of the plug is stuck in the head?

June 7th, 2011, 10:41 PM	#3
Bsmith ninjette.org member Name: Bill Location: Easley, SC Join Date: Jan 2009 Motorcycle(s): '08 Ninja 250 R.I.P. Posts: 84	How do you over tighten the plug that much? I would think the threads would strip first. Like Kim said what bike? If it's well and truly broken time to remove the head.

June 8th, 2011, 01:30 AM	#4
Racer x ninjette.org certified postwhore Name: Eric Location: Iowa City Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot. Blog Entries: 54 MOTM - Sep '18, Feb '16	10 mm plugs will snap off leaving the threads in the engine. One of those easy outs that is made to remove brokenm bolts works. There is already a hole down the center so you don't have to drill it.

June 8th, 2011, 08:03 PM	#7
Racer x ninjette.org certified postwhore Name: Eric Location: Iowa City Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot. Blog Entries: 54 MOTM - Sep '18, Feb '16	You can get the easy out from home depo. They have a square end so a 12 point socket with some tape to keep it from falling off the socket worked for me.

June 8th, 2011, 08:19 PM	#8
Yasko Texas Newbie Name: John Location: D/FW Texas Join Date: Sep 2010 Motorcycle(s): 07 Ninja EX250, 07 FZ6 Posts: A lot.	Thanks for your help everyone... The bike is a 250cc scooter, and he was able to remove it today... Thanks again...