Cant hear engine above 50mph.Bafflectomy?

espacef1fan · April 11th, 2012, 07:58 AM

Okay the title sounds ridiculous. However this is causing me some problems.

I have a mostly stock 2005 250.(DIY fender removal...thats about it...)

When I'm out burning up the local backroads I have a huge problem of not being able to hear the engine above 50mph. This bothers me due to being deprived of an audible indication of engine output.

When I ride these roads I am using " the pace"(constant speed, avoiding heavy acceleration and such)

I am not big on the idea of rejetting, but thte obvious solution is doing airflow mods.

I love how quiet the exhaust is so I dont really dont want to do slip ons...

Is a MILD bafflectomy right for me? Can I do it without rejetting?

Jiggles · April 12th, 2012, 12:06 AM

Downshift

Mulholland · April 12th, 2012, 12:22 AM

I'm sure on a pregen you can get headers independent from mufflers just lke on facelifts, and headers will usually increase engine "growl" and raise the Db a bit but with stock cannons bolted up will stil not boom and blast and scream the way a slip on will. Or get a slip on with a good mute that isn't designed to be annoyingly loud (MGP growler, cough cough*)

exhaust and engine rpm make the noise, pod filters make noise, but not like exhaust. From what I have heard they are not noticeable at all over a slip on, but by themselves pod filters may be loud, I am unsure of this, never seen just pod filters done *shrug*

tapdiggy · April 12th, 2012, 12:31 AM

Quote:

Originally Posted by Jiggles

Downshift

Best answer. The ninja 250 loves to have the piss revved out of it, the pregens especially. Alternatively, or additionally, get a less noise insulating helmet. A mid-spec HJC will make the world seem a noisy, poorly climate-controlled place.

JLinde1339 · April 12th, 2012, 07:14 AM

I have a stock exhaust and airbox delete. Replaced with K&N filter. It sounds more like a motorcycle now, rather than a turbo charged lawnmower...

Still working on the re jet...

Motofool · April 12th, 2012, 07:26 AM

Leave it like it is and press your ankles against the frame to feel the vibration.

Also check your tachometer frequently.

choneofakind · April 12th, 2012, 11:05 AM

Quote:

Originally Posted by Mulholland

I'm sure on a pregen you can get headers independent from mufflers

False. Only headers made are oem ones, and 2-1 full systems. If you find anything different than that, lemme know.

Quote:

Originally Posted by Mulholland

(MGP growler, cough cough*)

those are obnoxiously loud.

Quote:

Originally Posted by Mulholland

From what I have heard they are not noticeable at all over a slip on, but by themselves pod filters may be loud, I am unsure of this, never seen just pod filters done *shrug*

They make nice loud roaring intake noise under load. While just cruising or just at idle, it doesn't make much difference.

@espacef1fan your other option for a little more noise without getting farty is this. It makes a little more noise under load (like pods, but not as extreme), pulls a little harder at WOT, and if you shim the needles, makes the mid-range more responsive.

Don't worry about being about being able to hear it. Learn to feel it. It vibrates and pulls differently throughout the rpm range. That's free, and quiet.

espacef1fan · April 12th, 2012, 04:53 PM

These are all helpful posts. On a more powerful bike I would just put an exhaust on it, no questions asked, HOWEVER the Ninja uses high revs and large throttle opening just to get out of its own way...so that would be obnoxious.

I've never experienced this kind of situation before which is why I sound like such a n00b.

I already have the midrange HJC with built in visor(which is quieter than an ICON Alliance SS!!!!!!)

I will likely end up doing the airbox mod because its cheap, and it gives me something to tinker on(without getting as involved as rejetting and consequently, tuning extensively)

In the meantime I will also just try to "feel" the bike more. Maybe non rubberized footpegs? I'm tingly after rides already though....haha.

Looking at the tach is a bad idea..I have apexes and road hazards to worry about

Thanks again for the helpful input

Jiggles · April 12th, 2012, 06:06 PM

Quote:

Originally Posted by espacef1fan

I will likely end up doing the airbox mod because its cheap, and it gives me something to tinker on(without getting as involved as rejetting and consequently, tuning extensively)

Airbox mod = rejet/shim

espacef1fan · April 12th, 2012, 07:12 PM

Quote:

Originally Posted by Jiggles

Airbox mod = rejet/shim

needles are easy to get to comparitively

choneofakind · April 12th, 2012, 07:23 PM

jets aren't bad either.

tapdiggy · April 13th, 2012, 05:59 AM

Also, modding the airbox involves 4/5 of the steps to get at the carbs for a rejet, so why not go for it?

choneofakind · April 13th, 2012, 07:28 AM

No, modding the intake lid is quick and easy. I recommend cutting the batter box off at the same time so jetting is easier in the future, but it's not necessary.

Technically changing any part of your carbs to improve fuel delivery is making jetting changes.

April 11th, 2012, 07:58 AM	#1
espacef1fan ninjette.org member Name: ADAM Location: fort campbell, ky Join Date: Mar 2012 Motorcycle(s): Suzuki TL1000R Posts: 112	Cant hear engine above 50mph.Bafflectomy? Okay the title sounds ridiculous. However this is causing me some problems. I have a mostly stock 2005 250.(DIY fender removal...thats about it...) When I'm out burning up the local backroads I have a huge problem of not being able to hear the engine above 50mph. This bothers me due to being deprived of an audible indication of engine output. When I ride these roads I am using " the pace"(constant speed, avoiding heavy acceleration and such) I am not big on the idea of rejetting, but thte obvious solution is doing airflow mods. I love how quiet the exhaust is so I dont really dont want to do slip ons... Is a MILD bafflectomy right for me? Can I do it without rejetting?

April 12th, 2012, 12:06 AM	#2
Jiggles Jigglin' your Jiglets Name: Sean Location: San Jose, Ca Join Date: Jun 2011 Motorcycle(s): 2009 K1300S, 2013 Ninja 300, 2011 Ninja 250R, Faster than Unregistered's ninjette Posts: Too much. Blog Entries: 1 MOTM - Apr '13	Downshift __________________________________________________ If the Ninja 250 doesn't have enough power for you, then you don't know how to ride it. AFM #676 Supersports are for n00bs

April 12th, 2012, 07:26 AM	#6
Motofool Daily Ninjette rider Name: Hernan Location: Florida Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot. MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16	Leave it like it is and press your ankles against the frame to feel the vibration. Also check your tachometer frequently. __________________________________________________ *Motofool* *.................................Never ride faster than your guardian angel can fly* "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí

April 13th, 2012, 05:59 AM	#12
tapdiggy Humble Observer Name: Truong Location: Augusta, Maine Join Date: Mar 2009 Motorcycle(s): 2009 Yamaha XT250 Posts: 612	Also, modding the airbox involves 4/5 of the steps to get at the carbs for a rejet, so why not go for it? __________________________________________________ Everything I post is "IN MY HONEST OPINION". Why is "Parking Lot Enduro" not a thing?

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April 12th, 2012, 12:22 AM	#3
Mulholland Garage Monkey Name: Richard Location: North Texas Join Date: Apr 2011 Motorcycle(s): 03 Ninjette Posts: 166	I'm sure on a pregen you can get headers independent from mufflers just lke on facelifts, and headers will usually increase engine "growl" and raise the Db a bit but with stock cannons bolted up will stil not boom and blast and scream the way a slip on will. Or get a slip on with a good mute that isn't designed to be annoyingly loud (MGP growler, cough cough) exhaust and engine rpm make the noise, pod filters make noise, but not like exhaust. From what I have heard they are not noticeable at all over a slip on, but by themselves pod filters may be loud, I am unsure of this, never seen just pod filters done shrug*

April 12th, 2012, 07:14 AM	#5
JLinde1339 Fighterer in Training Name: Joshua Location: Schenectady, NY Join Date: Jul 2011 Motorcycle(s): 2001 Ninja 250R Posts: 316	I have a stock exhaust and airbox delete. Replaced with K&N filter. It sounds more like a motorcycle now, rather than a turbo charged lawnmower... Still working on the re jet...

April 12th, 2012, 04:53 PM	#8
espacef1fan ninjette.org member Name: ADAM Location: fort campbell, ky Join Date: Mar 2012 Motorcycle(s): Suzuki TL1000R Posts: 112	These are all helpful posts. On a more powerful bike I would just put an exhaust on it, no questions asked, HOWEVER the Ninja uses high revs and large throttle opening just to get out of its own way...so that would be obnoxious. I've never experienced this kind of situation before which is why I sound like such a n00b. I already have the midrange HJC with built in visor(which is quieter than an ICON Alliance SS!!!!!!) I will likely end up doing the airbox mod because its cheap, and it gives me something to tinker on(without getting as involved as rejetting and consequently, tuning extensively) In the meantime I will also just try to "feel" the bike more. Maybe non rubberized footpegs? I'm tingly after rides already though....haha. Looking at the tach is a bad idea..I have apexes and road hazards to worry about Thanks again for the helpful input

April 12th, 2012, 07:23 PM	#11
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	jets aren't bad either.

April 13th, 2012, 07:28 AM	#13
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	No, modding the intake lid is quick and easy. I recommend cutting the batter box off at the same time so jetting is easier in the future, but it's not necessary. Technically changing any part of your carbs to improve fuel delivery is making jetting changes.