Engine "whining" noise normal? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 7 Old 02-25-2006, 12:50 PM Thread Starter
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Engine "whining" noise normal?

Hi Fellow Troopers,

Over the last couple rides on my new DL1000, I've noticed a couple things about the bike and wondering if they are normal:

1) When I first start the motor on a cold day (45 degrees), I've noticed that the left exhaust expells "smoke" while the right exhaust doesn't. I don't think it's really smoke but probably condensation. And the left pipe exhaust is warm while the right is cool. Normal? Also water drips from the bottom of the left side pipe a little.

2) The engine makes a "whining" noise. Not a continuous whine, but more of a pulsing whine which is in conjunction with the RPMs. This is very hard to describe. Instead of a long "weeeeeeeeeeeeeee" it's more of a "wee wee wee wee". The sounds is there whether idling or reving. Normal?

'06 DL1000 - Grey
'89 GSXR 1100
'85 GS550E (Suz)
'75 Yamaha MX250B
'73 Yamaha MX125

Keep your feet on the pegs and your hand on the throttle.
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post #2 of 7 Old 02-25-2006, 04:12 PM
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I think I can answer #1 for you. I'm pretty sure that the exhaust system on the 1K is a 2 into 1 into 2 system. If you look under the bike the pipes come together then split again into the left and right pipes at the back. I've noticed the same thing as you on start-up but the white smoke comes out of my right can. At idle you're not pushing the volume of gases out the pipes as you would if you were on the throttle hard so it'll come out wherever the laws of physics demands I guess. Maybe the left one is the path of least resistance for the exhaust gases.

As for #2 you might be talking about the fuel pump. I think I have heard the same type of whine on the Strom, can't be 100% sure though. My previous bikes have all be carbed so I haven't heard the noise until this bike and chocked it up to the EFI. I'm not sure if it's sound is tied to the bikes RPM.....hell the bike is sitting in the garage with the battery out.....frigging winter.

Ian

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post #3 of 7 Old 02-25-2006, 09:18 PM Thread Starter
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I just checked the pipe. It's actually a seperate pipe for each cylinder with a cross-over between them. And the rear cylinder pipe is a lot shorter to the end then the forward one, so I guess that makes sense that the left would spew out the "smoke" first.

As for the whine, I'm thinking it probably is the fuel injection. This is my first FI bike so like you I'm wondering about it. Although I think I've heard this on other bikes.

'06 DL1000 - Grey
'89 GSXR 1100
'85 GS550E (Suz)
'75 Yamaha MX250B
'73 Yamaha MX125

Keep your feet on the pegs and your hand on the throttle.
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post #4 of 7 Old 02-25-2006, 11:17 PM
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Could it also be the cam gears that you are hearing?If it is changing tones/volume along with the rev cycles, then I doubt that it is the FI system or fuel pump.

BRIAN "GO Buckeyes, GO Wildcats"!

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post #5 of 7 Old 02-25-2006, 11:35 PM Thread Starter
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Quote:
Originally Posted by Big B
Could it also be the cam gears that you are hearing?If it is changing tones/volume along with the rev cycles, then I doubt that it is the FI system or fuel pump.
B, does your bike make this sound? The sound does not increase in volume with the revs. It stays the same whether idling or reving. Idling may be a little quiter. Sort of a "wee wee wee" sound. I think it's the Fuel Injection. I don't know because I have never had a bike making this sound before. I'm 80% sure it's a normal FI sound but not 100% sure.

Does your bike make the same sound?

'06 DL1000 - Grey
'89 GSXR 1100
'85 GS550E (Suz)
'75 Yamaha MX250B
'73 Yamaha MX125

Keep your feet on the pegs and your hand on the throttle.
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post #6 of 7 Old 02-26-2006, 12:31 AM
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[quote="ChrisW123"]I just checked the pipe. It's actually a seperate pipe for each cylinder with a cross-over between them. And the rear cylinder pipe is a lot shorter to the end then the forward one, so I guess that makes sense that the left would spew out the "smoke" first.quote]

Don't worry about the condensation only appearing on the left side. That just means that it isn't cold enough outside :wink:. When your riding in 20 degree weather it comes out of both sides :P; and while your riding in this cold weather you should have a grin on your face 'cause your going for a ride and the other guys are standing in there garages, wearing their sweats & slippers and sipping on a cup of coffee, and daydreaming about their rides when the weather get's warmer :P.

[B][I][SIZE=3] Ride Safe, Ride Often [/SIZE][/I][/B]
[B]'03 Vstrom - 996 - [I](3,318 miles and counting)[/I][/B]
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[B]'05 Vstrom[/B] [B]- 996 -[/B] [I][U](death by rock)[/U][/I]
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[B]'83 Honda Shadow 750[/B] [I][U](sold)[/U][/I]

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post #7 of 7 Old 02-26-2006, 01:03 AM Thread Starter
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Crisco, I know what you mean, 45 degrees and a nice 65 degress today seems perfect to me. But when it gets to 100+ here in a few months I'm gonna be hating it. But since my new jacket has more zippers and removable parts then anything I've used before I think I'll still be loving this season.

'06 DL1000 - Grey
'89 GSXR 1100
'85 GS550E (Suz)
'75 Yamaha MX250B
'73 Yamaha MX125

Keep your feet on the pegs and your hand on the throttle.
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