Anatomy of an OEM BMW plug cap.

[SteveD]

Lifted from http://www.bmbikes.org.uk/Forum/viewtop ... 25#p173025

[robert]

The first thing I do on any bike is replace OEM with NGK caps.---RG

[Rob]

The first thing I do on any bike is replace OEM with NGK caps.---RG

One of the best lessons I ever learned.
Pushing a bike in the rain is no fun.

[dougie]

The first thing I do on any bike is replace OEM with NGK caps.---RG

+1

[Kurt in S.A.]

I've been running the OEM 5K plug caps on my /7 since new. Nary a problem!!

Kurt in S.A.

[Gibson]

I have used NGK caps on the last 3 airheads I've owned. They are very good replacement.

[Zombie Master]

When you put on the NGK caps, do you replace the leads as well?

[dougie]

When you put on the NGK caps, do you replace the leads as well?

As they say - "If you're already in there".
Not big $$$.

[Rob]

Not big $$$.

For sure.
I consider wires and caps to be consumables. Not quite as bad as OEM cloth fuel line, but every once in awhile.

Mikes XS was my regular go-to guy.
I like the caps that grip the threaded stud on the spark plug.

https://www.mikesxs.net/yamaha-xs650-ng ... 00-00.html

$4.40 USD ea.

https://www.mikesxs.net/yamaha-xs650-pl ... -core.html

$5.92 / pair

[Zombie Master]

Anybody got part # or spec for caps and wire?