big dog smokes please help

[Skiman72]

i have a 2006 k-9 the bike seems to run perfect except for the fact that it smokes bad when i get into it. i would like some help to figure out why it smokes. the smoke is heavy and the color is blue to white. thanks for any help.

 

[Raywood]

Gonna need more info that what you provided. Where is your accelerator pump set at (how many turns out?). What jets are you running? What pipes and air cleaner do you have.
Does it smoke at idle when you rev it up? If so maybe it's just your accelerator pump set to high.
As long as it's not blue smoke indicating an oil leakage issue then I would think it just a rich adjustment issue.

 

[mobsta]

sounds like oil burning to me since its blue,fuel is black

 

[KaptinAmerika]

White smoke under acceleration sounds like a vacum leak or maybe an oil blow by vent blockage. Pick up a compression gauge from your local auto parts store, just the low cost one where you push it against the spark plug bore will do. Pusj it good and hard and turn the engine over a few times, make sure you disconnect the other spark plug as well. Don't have my manual yet so I can't remember the number. Somehere around 39 I think. Low numbers and you got worn rings. You didn't overfill the oil tank did you? When the K is upright and you roll it back and forth a little you should just see a little oil roll up in the bottom of the down tube. How many miles are on your K? How many miles since yoour last oil change?

 

[KaptinAmerika]

Also does the smoke start out as Blue and then as you get on it it goes to white or vice versa?

 

[Skiman72]

Gonna need more info that what you provided. Where is your accelerator pump set at (how many turns out?). What jets are you running? What pipes and air cleaner do you have.
Does it smoke at idle when you rev it up? If so maybe it's just your accelerator pump set to high.
As long as it's not blue smoke indicating an oil leakage issue then I would think it just a rich adjustment issue.

I have vance hines radious. It does smoke when you sit still and rev it up. When I bought the bike it did not have baffles in it. In the state of Maryland it will not pass inspection so I put baffles in and that's when a friend was behind me and noticed the smoke when I took off. I don't know how to determine what jets are in it. The bike has no loss of power and once you shift to a higher gear the smoke clears up even if I stay into it no smoke. The smoke when at idle starts black as you rev and turns blue as you let off.

 

[MARV]

i bet if you pull the exhaust and look into the exhaust port you will see oil coming down the inside and outside of the valve guide.

just like mine

 

[BBChopper]

What kind of rocker boxes do you have and how many miles??

 

[RRRUFF]

Check the air cleaner and see if there is oil there and like previously said check the oil level. There is also a one way check valve coming from the rear head and venting into the air cleaner. If this valve is stuck open it will pull oil into the carb. Worst case as said above is valve guides.

 

[mobsta]

valve guides will normally smoke on decel.however when i built my sporty motor one of the heads was full race,it had no valve stem seals and oil poured out the exhaust.i would check compression dry and wet,should be checked hot,i dont know about 117s but my 107 is running 175psi.could also be a check valve,like the old days with a clogged pcv valve,what the hell do i know im rambling,good luck

 

[stinger1]

Hope it aint valve guides! mine have gone for the second time in 12000 miles. TP rockers !!!!!! Crap, Now spending out for S&S rockers with hypo parts.

 

[Eric]

if you got TP boxes you better check this
http://www.bigdogbiker.com/forums/help-wanted/19826-smoke-bellows-out-occasions.html