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Old 10-27-2010, 07:34 PM   #1
jackpiner57 OP
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Joined: Aug 2005
Location: Northeastern Vermont
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DR-Z400S engine knock

Just bought a 2007 DRZ400S with 6900mi. on it. The bike appears to be very well taken care of and is completely stock.

I've never heard a DRZ engine before, so I have to ask. Is a slight knocking noise under acceleration normal? I have heard that these engines are "noisy" but what specific noises do they normally make?
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Old 09-12-2014, 09:24 PM   #2
AtlasExp
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After all those years, can you answer it your self!? :-)
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Old 09-12-2014, 09:55 PM   #3
oldenuf
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noise under load

Probably normal sounding with the stock exhaust. You hear a lot more of the engine sounds. The 400 seems happier with a downshift and higher rpm's.

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Old 09-12-2014, 11:49 PM   #4
enigma2y0u
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I have no direct experience with this bike, but ...

I usually make a mental note and ride it. All bikes have a sound to them. If it gets worse then you know.

My victory sounds like it has been rode hard when I start it, but 15k miles later and it runs like new.
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Old 09-13-2014, 06:00 PM   #5
moe sizlak
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They prefer a higher idle , around 1800 rpm .

Don't lug the motor .
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Old 09-13-2014, 07:34 PM   #6
matty86suk
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Piston slap, raise idle, don't lug it
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Old 09-14-2014, 06:29 AM   #7
Kawidad
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Quote:
Originally Posted by AtlasExp View Post
After all those years, can you answer it your self!? :-)
So, you resurrect a 4 year old unanswered thread with that response???
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Old 09-14-2014, 10:21 PM   #8
jackpiner57 OP
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Quote:
Originally Posted by AtlasExp View Post
After all those years, can you answer it your self!? :-)
Yes Anton! After 13,000 miles I've not noticed a change in the engine sounds, which tells me they are normal.

My wife said the nut that holds the handlebars makes a lot of noise too.

Thanks everyone for the helpful responses.
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Tom - '07 DR-Z400S, '05 DL650
Dual Sport Luggage Racks: DRZ400, DR650, KLR650, WR250R:
http://www.moto-racks.com

"I sort of realize there's a fundamental truth to our nature. Man must explore." -CMDR. David R. Scott

jackpiner57 screwed with this post 09-14-2014 at 10:29 PM
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