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DannoXYZ · August 26th, 2019, 05:20 PM

Be careful and don't force plug on if threads are mangled. That's how this mess was started.

First, you'll want to clean up and re-form threads with thread-chaser: https://www.amazon.com/Performance-T.../dp/B002KS9ETS

Next time when you replace plugs and find threads buggered, don't use helicoil type repair. They are for permanent locations like head studs or main bearing-caps that will be removed once or twice during bike's lifetime. Repeated installation and removal like spark-plugs will cause coils to come out with plugs eventually. You'll want to use 1-piece solid-steel insert for more durable repair of plug threads.

https://www.amazon.com/TIME-SERT-M10...dp/B01ETNH6IM/

August 26th, 2019, 05:20 PM	#6
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Be careful and don't force plug on if threads are mangled. That's how this mess was started. First, you'll want to clean up and re-form threads with thread-chaser: https://www.amazon.com/Performance-T.../dp/B002KS9ETS Next time when you replace plugs and find threads buggered, don't use helicoil type repair. They are for permanent locations like head studs or main bearing-caps that will be removed once or twice during bike's lifetime. Repeated installation and removal like spark-plugs will cause coils to come out with plugs eventually. You'll want to use 1-piece solid-steel insert for more durable repair of plug threads. https://www.amazon.com/TIME-SERT-M10...dp/B01ETNH6IM/