white soot inside pipes
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Cruiser
Joined: May 2008
Posts: 213
Likes: 3
From: St. Cloud, MN
white soot inside pipes
I have a 2005 road king custom with screamin eagle intake, stock ecm, vance and hines fuel pack, and drag specialties boom cans. \\; \\; I put about 700 miles on since i got the boom can slip ons and the bike seems to have been running okay. \\; checked the plugs regularily and they seemed a nice tan color as i would like to see. \\; just tonight i noticed that i have a white powdery residue inside my right side pipe. \\; never have seen it before \\;and sure i would have noticed it had it been there. \\; I just filled up my tank the other night with 110 octane fuel for ***** and giggles. \\; mixed about 50/50 with 92 octane fuel. anyone know if that would cause the residue or soot? \\; the bike has always popped on decel with the boom cans, but not horribly and it seemed slightly worse after i put the 110 octane in it. \\; I always was under the impression that higher octane fuel the better. \\; is this not the case in a stock build? \\; I havent been able to pull the plugs to check for lean burn but am a little nervous. \\; wont be able to do any looking for a while so i hoped someone could maybe ease my tension about this situation. \\; thank you in advance just for taking the time to read my long @ss post.
-Randall
-Randall
Intermediate
Joined: Feb 2008
Posts: 36
Likes: 0
From: danvanceracing.com Hampton Ct
RE: white soot inside pipes
Higher octane fuel is more oxegenated and requires a bigger jet to compensate. What your bike/exhaust is telling you is that she is a little lean. If you want to mix in some better fuel it's good but I would recommend 1 gallon in 5 gallon of 92 octane. \\; You shouldn't have any problems if you only run it once in awhile but if you run it all the time make the fuel adjustment. \\; good luck \\; dsv
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