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If possible, I would like to have you opinion on the color of my spark plug. I'm riding a 98 Road King, all standard, except for the S&S carb and the Morris magneto.
Jets are 0.295 and 0.72. The pic is of the front plug (the rear one looks a bit more pink/brown).
I'm doing 98 octane fuel (Europe), and what you see is after a 240km (150 miles) ride (mix highway and back roads).
I think I'm a bit lean, but my friends tell me it's OK.
Because they say it should look like mocha (light brown), not grey.
I would expect grey/white plugs coming from a bike with injection, not from a carbed one.
To me, they look good, although they say you have to run a bit rich if you have a magneto.
They're quite new (less than 500 miles), But they were sooted before because of wrong timing & wrong carb settings. Fixed both over the week-end. Plugs are Autolite 4265.
Got the bike from my dad, I'm trying to make it run good...
They're quite new (less than 500 miles), But they were sooted before because of wrong timing & wrong carb settings. Fixed both over the week-end. Plugs are Autolite 4265.
Got the bike from my dad, I'm trying to make it run good...
WOW... guess I have just grown use to modern electronic engine ignition and fuel injection.
My center electrode on my 04 FXSTDI looks better then yours when mine have 10K on them. The last sets I took out of a CRV at 118K and a Civic at 130K looked better then that!??? ... Whatever you do, don't let that magneto get a hold of you. You could weld in a pinch with that bad boy...
the plugs are contaminated from a prior poor set up, I can't give an opinion based on knowing that, so put fresh plugs in it and come back in 500 miles.
The condition of the ground strap troubles me for such short mileage, the timing must have been way off IMHO
WOW... guess I have just grown use to modern electronic engine ignition and fuel injection.
My center electrode on my 04 FXSTDI looks better then yours when mine have 10K on them. The last sets I took out of a CRV at 118K and a Civic at 130K looked better then that!??? ... Whatever you do, don't let that magneto get a hold of you. You could weld in a pinch with that bad boy...
What do you mean by looking better? The color, the?
I'll mount a new set of plugs and will go out for a longer ride .
The rounded center tip. I don't see any problem with the grounding strip other poster is saying however. Be interested what he sees. But I would not expect that anyway with ground strip. (What you bend to set) Flow of electrons does not work that way. Current goes to negative. Electrons goes other way.
Last edited by Jackie Paper; Jun 1, 2021 at 08:07 AM.
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Spark plug color opninion
... Whatever you do, don't let that magneto get a hold of you. You could weld in a pinch with that bad boy...
