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Black Smoke Any Suggestions? (Read 6 times)

Scottwerty Full Member Offline It's not a Gang! It's a Club! Posts: 118 Mass Gender:	Black Smoke Any Suggestions? 09/15/06 at 12:46:48 Ok Its a 2001 Savage Drop-in K&N, Tweaked stock exhuast, was a new plug probably not now. Just went down to a 1/2 Spacer on stock jet . Idle at 2 - 2 1/2 . Q. whats my best option Add more space or lean out idle more? Whats the lowest setting i should have the idle screw
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vroom1776 Serious Thumper Offline Posts: 2110 Gender:	Re: Black Smoke Any Suggestions? Reply #1 - 09/15/06 at 13:17:33 How much smoke? On the PMS screw, 1 turn out min, otherwise, go down a size on the pilot.
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Scottwerty Full Member Offline It's not a Gang! It's a Club! Posts: 118 Mass Gender:	Re: Black Smoke Any Suggestions? Reply #2 - 09/15/06 at 14:45:48 puff of black right around 1/4 on roll off of the throttle. not to bad but its definitly rich Add more space or play with Idle Screw? will rejet if these don't work.
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vroom1776

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Re: Black Smoke Any Suggestions?
Reply #3 - 09/15/06 at 15:35:23

small puff? at 1/4 throttle? the pilot system usually controls the bike up to 1/4 throttle. After that your getting into needle issues. So start fooling w/ the idle circuit. If the results aren't what you are looking for, then go into the needle height. I tend to think 1/2 the white spacer is too thin, but a lot of folks do like it... Without a free flowing muffler, even w/ the KN drop in, I'll bet the 1/2 spacer is too thin. If you shaved it, you can go to the hardware store and buy some # 3 or 4 (maybe #2?) washers that you can effectively replace the spacer w/. Are you near sea level?

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Dynobob Serious Thumper Offline 2003 LS650 (with Supertrapp) Posts: 634 Northern Virginia Gender:	Re: Black Smoke Any Suggestions? Reply #4 - 09/15/06 at 16:14:33 Scottwerty wrote on 12/31/69 at 16:00:09: puff of black right around 1/4 on roll off of the throttle. If it happens when rolling off the throttle it's probably your slow mixture screw. Start screwing it in 1/8 or 1/4 turn at a time and see if it helps. What's the elevation where you live?
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Scottwerty Full Member Offline It's not a Gang! It's a Club! Posts: 118 Mass Gender:	Re: Black Smoke Any Suggestions? Reply #5 - 09/15/06 at 16:49:40 I live around boston. Sea Level . i think the 1/2 spacer is the culprit. Will try 2/3-3/4 spacer tomorrow
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Scottwerty

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Re: Black Smoke Any Suggestions?
Reply #6 - 09/17/06 at 10:07:51

White space mod was the prob the washers i used are too wide #3 if any one wants to know. they didn't slide into the spring shaft. Sad

I'm filing down the white spacer a little at a time for now.
New Question. Now i'm getting a light whitish blueish Smoke after rolling off the throttle is that a sign of still being to rich?
Added Note: The smoke does smell like unburnt fuel, I'll try to lean out the Idle screw a little

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Scottwerty Full Member Offline It's not a Gang! It's a Club! Posts: 118 Mass Gender:	Re: Black Smoke Any Suggestions? Reply #7 - 09/17/06 at 10:40:22 I Do add Lucas fuel treatment to the gas could i have put too much. the smoke is really lite only after a rolloff. unless I twist the throttle a couple of times then its a little more pronounced.
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Dynobob

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Re: Black Smoke Any Suggestions?
Reply #8 - 09/17/06 at 17:19:42

Scottwerty wrote on 12/31/69 at 16:00:09:

New Question. Now i'm getting a light whitish blueish Smoke after rolling off the throttle is that a sign of still being to rich?

Black smoke is rich jetting. Blue smoke is burning oil. White smoke is water (either from blown headgasket or moisture in the exhaust).

Too much gas additive isn't a good thing. I really avoid additives unless I can see a definate problem. I've used SeaFoam with success on a sticky carb.

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Scottwerty Full Member Offline It's not a Gang! It's a Club! Posts: 118 Mass Gender:	Re: Black Smoke Any Suggestions? Reply #9 - 09/18/06 at 09:38:50 The New smoke is due to bad gas from a Hess Station this new 10% Ethanol likes moisture. Hence small amount of whitish smoke.
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