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1990 K 75 RT spark plug recommendations please

nickrides

Nick Kennedy
Hey all
Whats the best plugs for my 1990 K 75 RT?
Thats in advance!

The book says Bosch X5DC
The last ones I bought were made in India, not to excited about that..
 
Bosch X5DC.

Marshall, myself, and the BMW engineers agree.:deal

Do not put a resistor plug in a K75 as the wires have a gap built into them (that's why you can't test them with an ohmmeter).







:dance:dance:dance
 
Lee
Trying to learn something here.
Why do they build those plugs wires with a gap in them?
I would think that having a gap would use energy to create a spark to jump the gap.
And where does the heat go the spark creates.
Thanks in advance!
 
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