Spark Plugs and Throttle Sync

on

46,425 miles

2004 R1150GS is a twin spark model. There are two spark plugs per cylinder. What I just discovered was that the primary plug and the secondary plug use different plugs.

I bought four primary plugs... I had no secondary plug... I had to order them on ebay just now.

So all I got done was to switch the primary plug. While I was at it, I also throttle synced.





For my future reference, the spark plug models are

Primary - NGK BKR7EKC-N

Secondary - Bosch YR6LDE

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