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Speed Triple Forum Rants and ravings about the best naked triple on the planet!

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Old 06-26-2008, 04:59 PM   #1 (permalink)
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engine smoke is this normal?

I know the basics blue=burning oil, black=to rich etc....i just recently started up the s3 and did a few revs and it puffs out a little puff of grayish black smoke. Im not familar with fuel injected engines so is this normal or what, bike only has 4500 miles and am running full synthetic oil. I should add that the engine wasnt very hot..the guage was barly past the top cool mark. Could it be the injection giving the engine more fuel for cold starts? kinda like choking a carb. It smoked just like i had a choke pulled out and reved it up. It doesnt do it at idle or anything...i just took it for a spin, got it up to temp and it doesnt do it nearly as much. I think it might be a little on the rich side. thanks

Last edited by sandslinger17; 06-26-2008 at 06:04 PM.
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Old 06-26-2008, 07:43 PM   #2 (permalink)
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I'd say you have picked it correct as running rich after a cold start.

Mine does the same, puffs black smoke with a quick flick of the throttle when cold.
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Old 06-26-2008, 07:49 PM   #3 (permalink)
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White smoke indicates a blown head gasket with coolant getting into the cylinder.

Do a compression check on each cylinder to verify.
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Old 06-26-2008, 07:52 PM   #4 (permalink)
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thats good to hear its not just me this time. Other than that it runs fantastic.
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Old 06-26-2008, 07:54 PM   #5 (permalink)
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Quote:
Originally Posted by TripleZ View Post
White smoke indicates a blown head gasket with coolant getting into the cylinder.

Do a compression check on each cylinder to verify.
its not white smoke. Its Blackish
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Old 06-26-2008, 08:10 PM   #6 (permalink)
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When I start up my 97 S3 I always get grayish smoke for 10 seconds or so. I won't even touch the throttle for about 1 minute after starting it.

I hope your Black smoke is nothing more than carbon build up. With these high performance engines I tend to get my bike up to 8000 RPM or higher on regular bases. Do you tend to ride your bike hard or motor around town in a lower RPM range?


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Old 06-26-2008, 08:42 PM   #7 (permalink)
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i just got the s3. The previous owner had it for 4 years and only put 1300 miles on it and i think he babied it. Yours smokes gray for 10 seconds after starting? whats that from? I think its just carbon build up with combination of running a little rich when cold.
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Old 06-27-2008, 02:12 AM   #8 (permalink)
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Quote:
Originally Posted by TripleZ View Post
White smoke indicates a blown head gasket with coolant getting into the cylinder.

Do a compression check on each cylinder to verify.
it can, but usually the white smoke is then so thich, you fills the world and you cannot see ****.

little white smoke is totally normal for a cold engine. it's just air moisture condensating to the pipes. Also fuel burning generates water to the exhaust.

Last edited by jaket; 06-27-2008 at 02:17 AM.
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Old 06-28-2008, 12:48 AM   #9 (permalink)
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Quote:
Originally Posted by jaket View Post
it can, but usually the white smoke is then so thich, you fills the world and you cannot see ****.

little white smoke is totally normal for a cold engine. it's just air moisture condensating to the pipes. Also fuel burning generates water to the exhaust.
Agreed.

Many Speed Triples puff white smoke on start up and most Triples probably have a little vapor 'spittle' you'll see if you put your hand over one of the exhaust tips. Especially with the stock cans on a cool morning. It does not mean you have a blown head gasket.
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