White steam or smoke from exhaust! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 9 (permalink) Old 04-01-2007, 11:16 AM Thread Starter
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Question White steam or smoke from exhaust!

Hello,
Recently my bike has been hard to start in the mornings and I noticed it appears to be very small whif of white steam or smoke coming out of one of the exhaust. Would this mean radiator leak inside engine? If so I hope not expensive to fix? Anybody have idea what this may be? Tks...

Mike B.
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post #2 of 9 (permalink) Old 04-01-2007, 02:49 PM
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If it's just a small amount, and only at start-up, it's most likely just built up condensation in the pipes.

Does it still do it after it's warmed up a bit? Also, how's the coolant level and how does the oil look in the sight glass?


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post #3 of 9 (permalink) Old 04-01-2007, 03:12 PM
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Can you smell a sweet smell when it smokes or is it just exhaust smell?
If it is coolent burining in the motor it will smell sweet, look at your oil and see if it looks milky or foamy.
If you see good oil and no sweet smell then I would not worry, probabley condensation and wont hurt anything.
Hiw long do you ride after you start it in the morning, if it is short rides the moisture will not evaporate and can cause rust in the inside of the pipes and muffler.

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post #4 of 9 (permalink) Old 04-01-2007, 03:45 PM
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Pull the plugs, that will tell you right away.
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post #5 of 9 (permalink) Old 04-01-2007, 05:24 PM Thread Starter
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Thanks everyone for the replies. Whenever possible I ride in the morning to work which is a good hard ride - love it! Once warmed up - no problems. It probably is just moisture since it only happens at start up. I just recently got new plugs (Iridium) and will change over this week and look at the old ones. What would I be looking for? Tks...

Mike B.
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post #6 of 9 (permalink) Old 04-01-2007, 06:52 PM
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Good running will cause the plugs porcilin to have a slight brown tint to them.
If they are black, you are rich, if they are white lean.
If there is a crust starting on them coolent.

Chad Falstad "Hawk"
Vroc #17649
2011 HD Ultra Classic "angel"
2001 Nomad 1500 Sold March 2012
2001 VN 750 "Sold June with 2008 with 21,000""Serinity"
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post #7 of 9 (permalink) Old 04-01-2007, 08:38 PM Thread Starter
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Ok - I got it!
Thanks...

Mike B.
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post #8 of 9 (permalink) Old 04-01-2007, 09:18 PM
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Anxious to hear what you think of the iridiums. Let us know if any difference with them.

Ben-
SW Ohio

'02 VN750
Pipes drilled
Spline lubed
R/R relocated
AGM batteried
Iridium equipped
LED tail lighted
8000-ish miled
Soon to be MCCTed

Lovin Life.
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post #9 of 9 (permalink) Old 04-02-2007, 11:03 AM Thread Starter
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I'm not the mechanic - don't even have the tool to change da plugs. Shop is open on Tuesday and if no rain I hope to try those iridiums and I will let you know what I think.

Mike B.
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