Cross threaded sparkplugs

[AmGr8ful]

2 of the sparkplugs on my 1977 GS750 are crossthreaded I believe. Are there any tools/adapters that will help me solve this problem? Websites with products for sale or alternative methods would be greatly appreciated! Thank you in advance!

Not a Mechanic,

John

[Nicholaschase29]

I think autozone or something like them have a spark plug thread cleaner... but take that with a grain of salt.

Nick

[oldschoolorange]

There are some thread chasers out there that might be able to sort your problem out. However if the threads are really bad you are going to have to helicoil them

[AmGr8ful]

Size and length of Thread chaser?

I am uncertain of what size thread chaser to use. And would the length also be a concern? This is for a 77 GS750.

[Nessism]

No disrespect intended John, but based on your questions you should not attempt this type of repair - you might make it worse. Find a good mechanic, or maybe a machine shop, and have them try to clean the threads with a tap. Failing that, the stripped hole(s) will need insert of some type to repair the threads.

[salty_monk]

You should be able to find a mechanic that can do it without removing the head.... Last one I had helicoiled cost me 50-60 bucks incl. (It was a car though...)

Dan

[RacingJake]

First I'd check what type of plug came out and what's the correct one for your motor. I've worked on alot of other peoples ride and seen alot with standard size plugs that that should of been metric size. Most of the time the standard plug was half the lenght and only screwed up the first few threads. Just by installing new oem plugs solve the problem.

[AmGr8ful]

Crossthreaded plug

The plug that is in it is what Suzuki calls for in the manual. I think whoever put it in just didn't seat it right and kept on going.

I am just wondering what size thread chaser to use.

[SqDancerLynn1]

77 gs 750 has the standard 14mm plug 3/4" reach
check www.jcwhitney.com
item # ZX144235B thread kit