Spark plug thread SIZE??

[Dirtcrasher]

Hi guys, I'm busy as all hell and looking for some quick help...

Without me doing the research, does anyone know what metric thread size and pitch most of our sparkplugs are?? Like for a 200X, 250SX, 350X, they all use the same thread - is it 14mm x 1,25 pitch?? (That's a guess...) Anyone, I need to buy some threaded inserts as well as a time-sert kit for a customers 350X heads.

Just short on time.

Thank you for any help...

[ironchop]

Here

https://www.mrcycles.com/sparkplugspecguide

Sent from my Z958 using Tapatalk

[Dirtcrasher]

Must be 14.25" - Good guess, lol..

Thanks bud.

[yaegerb]

200x and 350x are 12x1.25

[Dirtcrasher]

Why am I only finding 14mm inserts?? I can get a 12mm helicoil, but wanted to use a threaded insert... Not the 150$ kit though...

Thanks for any help!

[yaegerb]

Here’s the kit I use but you need to get longer inserts. The second link is 24mm inserts

https://www.ebay.com/itm/Time-Sert-1212-M12-x-1-25-Metric-Thread-Repair-Kit-/291715528409

https://www.ebay.com/itm/Time-Sert-12125-M12-x-1-25-x-24-0-Carbon-Steel-Insert-10-Pack-/272338110375

[Dirtcrasher]

Thanks Yaeger... Still a good chunk tho...

I normally have no problem buying tools, I just haven't ever needed one of these and only have one job to do.

I can't pass the cost of the kit to the customer, so I'm trying to keep the cost down, that's all...

[Dirtcrasher]

Okay, I bought the real kit...

Anyone need any threads repaired?? I gotta pay for this kit, lol....