Is This Engine Noise Normal for 250?

Ninjettepgh · September 15th, 2013, 05:45 PM

Hello

First and foremost, please know I am quite a novice at all of this mechanical stuff. I have owned this 2006 Ninja 250 for about 2 years and to be honest, put it through some hell (rode all through PA winter). But, I do try to keep up on covering it, lubing the chain, changing the oil, etc.

So..the problem. The level of noise from the engine has always been somewhat loud...and I figured that's just how 250s are. But more and more I've been getting irritated on why mine sounds so loud and other bikes sound..well..quiet. I've tried to do some research...maybe valve adjustment? bad/dirty carbs? I really don't know and hoping someone will be able to tell me by the video what they think it may be. I know you can only give a guess because its a video, but any hints/ideas would be appreciated.

In the video attached below, I show you the sound of the engine fully warmed up, idle about 1,500 and revving it to about 3k or so. May not sound terribly loud in the video, but I assure you...it is much louder than any other bikes like mine. Why? Other bikes I hear a more....clean sounding, sporty, quieter sound.

This is pretty vague information. so Please feel free to ask questions to help diagnose.

Thanks so much in advance.

Alex · September 15th, 2013, 06:14 PM

What exhausts do you have on the bike?

Ninjettepgh · September 15th, 2013, 06:19 PM

Two Brothers slip on exhaust.

Alex · September 15th, 2013, 06:20 PM

I think you found your answer.

Ninjettepgh · September 15th, 2013, 06:36 PM

Why would the slip on exhaust make the loud noise in the engine?

Alex · September 15th, 2013, 06:40 PM

The exhaust is probably the largest factor in what a bike sounds like. Two Brothers is one of the loudest, most annoying slipons available for the 250.

Ninjettepgh · September 15th, 2013, 06:43 PM

Do you know where I can buy stock OEM exhaust? These were on when I bought it

Alex · September 15th, 2013, 06:50 PM

You can always post up a note in the Items Wanted section here to let people know you're looking for them. It's probably not cost-effective (see: very expensive) to buy original new ones, but with any luck you can track down a used set that people don't need for one reason or another.

matt85 · September 15th, 2013, 07:29 PM

I see you are from the Pittsburgh area. Check craigslist as I saw someone in the North Hills parting out a 250, just reposted today. You might get a good deal on a stock exhaust if they still hsve them.

kmanlyst · September 15th, 2013, 07:35 PM

Quote:

Originally Posted by Alex

The exhaust is probably the largest factor in what a bike sounds like. Two Brothers is one of the loudest, most annoying slipons available for the 250.

I know of one that is more annoying... I give you my exhaust the Danmoto XG-1

https://www.youtube.com/watch?v=1_olOONJRZ8

quarterliter · September 15th, 2013, 08:17 PM

Just out or curiosity are you planning on selling the 2 bros slip ons?

Ninjettepgh · September 16th, 2013, 04:39 AM

Once I get stock, yeah definitely will sell

Finesse · September 20th, 2013, 07:38 PM

I bet you could find someone to trade you stock exhaust for two brothers. like.... me

Alexis_07ninja · April 8th, 2023, 09:27 PM

This is an old thread so I hope someone sees this but, my ninja sounds like the one in the video BUT I have stock exhaust and it didn’t always sounds that loud. It used to sound like a big sewing machine and now it’s more… throaty? I haven’t changed anything since it started sounding this way. Someone else did borrow it for a night and I noticed it right after, but they didn’t do anything to it as far as I know.

Triple Jim · April 9th, 2023, 07:12 AM

Looking at the rear end of the mufflers, do you see four rivets around the openings, or four holes?

Welcome to the board, Alexis!

September 15th, 2013, 06:14 PM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	What exhausts do you have on the bike? __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 15th, 2013, 06:20 PM	#4
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	I think you found your answer. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 15th, 2013, 06:40 PM	#6
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	The exhaust is probably the largest factor in what a bike sounds like. Two Brothers is one of the loudest, most annoying slipons available for the 250. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 15th, 2013, 06:50 PM	#8
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	You can always post up a note in the Items Wanted section here to let people know you're looking for them. It's probably not cost-effective (see: very expensive) to buy original new ones, but with any luck you can track down a used set that people don't need for one reason or another. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

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September 15th, 2013, 06:19 PM	#3
Ninjettepgh ninjette.org member Name: Jeremy Location: Jeannette Pa Join Date: Jul 2012 Motorcycle(s): 06 Ninja 250 Posts: 16	Two Brothers slip on exhaust.

September 15th, 2013, 06:36 PM	#5
Ninjettepgh ninjette.org member Name: Jeremy Location: Jeannette Pa Join Date: Jul 2012 Motorcycle(s): 06 Ninja 250 Posts: 16	Why would the slip on exhaust make the loud noise in the engine?

September 15th, 2013, 06:43 PM	#7
Ninjettepgh ninjette.org member Name: Jeremy Location: Jeannette Pa Join Date: Jul 2012 Motorcycle(s): 06 Ninja 250 Posts: 16	Do you know where I can buy stock OEM exhaust? These were on when I bought it

September 15th, 2013, 07:29 PM	#9
matt85 ninjette.org newbie Name: Matt Location: Pittsburgh Join Date: Sep 2013 Motorcycle(s): 2005 Ninja 250 Posts: 5	I see you are from the Pittsburgh area. Check craigslist as I saw someone in the North Hills parting out a 250, just reposted today. You might get a good deal on a stock exhaust if they still hsve them.

September 15th, 2013, 08:17 PM	#11
quarterliter ninjette.org guru Name: Kevin Location: Madison Join Date: Apr 2013 Motorcycle(s): 2004 Ninja 250 Posts: 465	Just out or curiosity are you planning on selling the 2 bros slip ons?

September 16th, 2013, 04:39 AM	#12
Ninjettepgh ninjette.org member Name: Jeremy Location: Jeannette Pa Join Date: Jul 2012 Motorcycle(s): 06 Ninja 250 Posts: 16	Once I get stock, yeah definitely will sell

September 20th, 2013, 07:38 PM	#13
Finesse ran when parked Name: Katie Location: DC/MD Join Date: Aug 2013 Motorcycle(s): Freeride 250R, KLX250SF, mopeds Posts: A lot. MOTM - Sep '17, Dec '14	I bet you could find someone to trade you stock exhaust for two brothers. like.... me

April 8th, 2023, 09:27 PM	#14
Alexis_07ninja ninjette.org newbie Name: Alexis Location: Tulsa, oklahoma Join Date: Feb 2023 Motorcycle(s): 2007 ninja 250 Posts: 2	This is an old thread so I hope someone sees this but, my ninja sounds like the one in the video BUT I have stock exhaust and it didn’t always sounds that loud. It used to sound like a big sewing machine and now it’s more… throaty? I haven’t changed anything since it started sounding this way. Someone else did borrow it for a night and I noticed it right after, but they didn’t do anything to it as far as I know.

April 9th, 2023, 07:12 AM	#15
Triple Jim Guy Who Enjoys Riding Name: Jim Location: North Carolina Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot. MOTM - Oct '18, Aug '17, Aug '16	Looking at the rear end of the mufflers, do you see four rivets around the openings, or four holes? Welcome to the board, Alexis!