Arcing on No1 & 2 only - help.

[canyon_jack]

hi,
just fired up the bike after having it parked for the winter - too much snow in AZ high country to ride.

I noticed arcing on number 1 and number 2 cylinders. Nothing on 3 & 4 though.

All wires look sold and intact.

Any thoughts?

[TopCatGr58]

Hey Jack,

Check out this tech tip from the Top Drop down menu!

http://www.xs11.com/xs11-info/tech-t...old-coils.html

Also, check the plug caps, remove them and check their resistance...should be 5K ohms or so, but if much higher then the spark may be looking for a path of least resistance??

Try bending the plug wires, you may be surprised with cracks and such!

T.C.

[canyon_jack]

forgot to mention - wires and coils only 1 year old

coils and wires are only about a year old and only have about 500 miles on them. i'd have to look to see brand - I bought the bike from an old biker friend who never skimps on parts.

all the wires look and feel solid.

[skids]

Along the line of TC's statement, I was once informed (Denny Zander?) that badly fouled plugs can make arcing to ground around the sparkplug.