[smthng]

I ordered a new coil, OEM because I didn't want to have to deal with spark plug boots that were the wrong shape or anything like that. Yamaha solves this issue by simply not including a boot.


Old wire and boot is on the right, new wire is on the left.

How do I swap the boot to the new wire? "Yank and stuff" seems a bit cavemanish... am I missing something? Thx!

 

[grewen]

it should unscrew off the wire

 

[smthng]

Thanks, that was it.

Just for anyone else searching for this in the future, it is a screw in post inside the boot. The screw post threads into the inside of the wire.

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View attachment 147098
Jam screw post into new wire, attempt to center it as much as possible. Screw in until it bottoms out. Don't forget to transfer the insulation shield from the old one first (the rubber bootie).

 

[elime]

For those that want a picture of a boot with the screw:


I used VD05FP (vee dee zero five eff pee)
I hope this link works: https://www.ngk.com/product.aspx?zpid=20088

And an exciting picture of what it looks like when installed:

 

[smthng]

Thanks for the pics... I used one of my hosts when Imgur was having a bad day. I'll dig around some on getting forum compliant pics set up. Yours are better anyway.

 

[Badgerflorida]

At that price, this should probably be added to any tune-up. Especially for older bikes with original equipment. Thanks for this thread. Cheers

 

[jtomelliott49]

Nice thread. Thanks for the info to all who contribute here. Great place to hang out.

 

[Badgerflorida]

elime - how did you find that product number? I couldn’t get the NGK website to give me anything matching TW200. Would this fit all TW years? Thanks and cheers

 

[Bobo413]

It's always a good idea to put a dab of dielectric grease on the plug boot to help seal it & prevent high voltage leaks that will cause misfires.

 

[Badgerflorida]

Blue locktite on threads?

 

[Bobo413]

Blue locktite on threads?

Not on a plug boot. It's not like it can vibrate & spin off.

 

[Badgerflorida]

Good point. I was thinking more for corrosion protection but those threads should be pretty well protected in the boot. I’ve got problems on my hands with all the rust on my bike, especially fasteners. Thanks and cheers.

 

[smthng]

Good point. I was thinking more for corrosion protection but those threads should be pretty well protected in the boot.

I think the dialectric grease mentioned by @Bobo413 should take care of that. At least that's what I'm going to be relying on. :icon_thumbright:

 

[elime]

elime - how did you find that product number? I couldn’t get the NGK website to give me anything matching TW200. Would this fit all TW years? Thanks and cheers

Yes, I had the same problem. I looked around their website and found this pdf file and picked out the one I thought would meet my needs. My first choice, YB05FP, was a mistake because the rubber boot was to big and far from "water proof". Expand the picture and you can easily see the gap between the porcelain and the rubber boot.



So back to the drawing and I found one more to my liking. The right length, the right angle, the right size. I really wanted one with zero resistance but that wasn't to be. I hope this link works:

https://www.sparkplugs.com/Data/Documents/NGK_Resistor_Covers.pdf

Good luck.

 

[elime]

And here is what a tightly fitting "water proof" boot looks like. Probably enough to keep splash water from shorting it out but if it gets totally submerged I bet it will leak.

 

[Badgerflorida]

Thanks elime for sharing your trial and error and research. How do you like it compared to stock?

 

[elime]

Thanks elime for sharing your trial and error and research. How do you like it compared to stock?

Honestly it is hard to tell a difference however, it looks cool !!!

And you never know -- someday splashing through a stream I will make it due to the water proof boot.

 

[Ken]

I may need one of those plug boots since I ride through the adjoining neighborhood when it floods. I do have mine packed with silicone plumbers grease which seems to waterproof it. My tip for riding through high water on a smooth street is hold your feet up and keep the rpms up. Last time I pointed my toes back and my boots filled up with water.