May 29th, 2009, 01:09 PM | #41 |
ninjette.org member
Name: Matt
Location: Keller, TX
Join Date: Dec 2008 Motorcycle(s): 2008 Ebony Ninja 250R Posts: 137
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Man, I finally got around to doing this mod on my lunch break today. I'm quite surprised how it opened up the top end for me. Throttle response has smoothed over. I've know about the mod, I've just been worried about water getting in.
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May 29th, 2009, 01:41 PM | #42 |
Join Date: Nov 2008 Posts: Too much.
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Matt,
Have you done any jetting or exhaust mods? |
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May 29th, 2009, 02:17 PM | #43 |
ninjette.org member
Name: Matt
Location: Keller, TX
Join Date: Dec 2008 Motorcycle(s): 2008 Ebony Ninja 250R Posts: 137
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I've got the D&D slip-on and two washers.
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May 29th, 2009, 02:55 PM | #44 |
Join Date: Nov 2008 Posts: Too much.
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Cool... it should run about perfect.
If you ever feel the need, though, you could try putting a third shim in there to see if it helps out even more. But first, spend some time as you have it now so you can get a good feel of what the bike does and doesn't do before you make any more changes. |
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June 1st, 2009, 09:52 AM | #45 |
ninjette.org member
Name: Matt
Location: Keller, TX
Join Date: Dec 2008 Motorcycle(s): 2008 Ebony Ninja 250R Posts: 137
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Thanks for the input, Kelly. I will probably start tinkering with the shims again soon.
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June 11th, 2009, 08:42 PM | #46 |
is awesome
Name: Crystal
Location: Saskatoon, SK
Join Date: Mar 2009 Motorcycle(s): 2009 Ninja 250r SE Posts: 43
Blog Entries: 2
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Did this after I shimmed my carb needles while I still had all my body work off. Can't really notice any difference yet as I haven't taken it out for a ride.
It was very difficult for me to push the snorkel out so I had get a screwdriver to pry it a little before I got it out (made sure to cover parts with towels and such so nothing was scratched, no worries !) Managed to finally get it out, but I can't say it's worth it quite yet, as I have yet to see what effect it has on my bike. |
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June 12th, 2009, 05:53 AM | #47 |
ninjette.org certified postwhore
Name: Sam
Location: Northern Virginia
Join Date: Nov 2008 Motorcycle(s): Ninja 250R 2009 Posts: A lot.
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June 15th, 2009, 11:26 PM | #48 |
ninjette.org member
Name: Jordan
Location: Calgary
Join Date: May 2009 Motorcycle(s): 2009 ex250 Posts: 98
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Is there any danger of water getting at the air intake after taking the snorkel off? Vancouver is *very* rainy, and I'm commuting on this bike, so I don't want to do this mod if it could damage things. Also, how much of a difference in mpg is there after removing the snorkel?
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June 15th, 2009, 11:50 PM | #49 |
Join Date: Nov 2008 Posts: Too much.
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if you submerge the bike so that water fills the airbox from the intake hole, you'll have a problem... you would also have the same problem with the snorkel in place at that depth.
roughly a 10% reduction in fuel economy.... depends how much you twist the throttle. |
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June 16th, 2009, 10:02 AM | #50 |
Sarcasm: Yea that'll work
Name: Andy
Location: Essex Jct, VT
Join Date: Dec 2008 Motorcycle(s): '08 Ninja 250R Posts: 330
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Interestingly enough, after removing the snorkel and putting in the Dynojet needles, I haven't seen a reduction in fuel economy. And believe me, I'm twisting the throttle more
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'08 Blue - Seat Cowl - A-Tech CF Fender Elim - Zartan's Exhaust Hanger - Dynojet Kit - Drilled Slides - Snorkel Removed - K&N Drop In Air Filter - Tech Spec Grips - Sportisi Windscreen & VR Exhaust |
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June 16th, 2009, 10:30 AM | #51 |
Psychic war veteran
Name: Thomas
Location: Norfolk, VA
Join Date: May 2009 Motorcycle(s): Kawi Green '09 Ninja ZX6R Posts: 663
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That may have something to do with the fact that because the bike runs better at mid throttle with the mods that you've done you no longer need to get as deep into the throttle as you used to to get to the same place in the engine's power band.
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* If you're arguing with some idiot over the internet, chances are pretty good he's doing the same thing! Zodiac Mindwarp and the Love Reaction |
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June 16th, 2009, 10:34 AM | #52 |
ninjette.org member
Name: Jordan
Location: Calgary
Join Date: May 2009 Motorcycle(s): 2009 ex250 Posts: 98
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June 19th, 2009, 09:29 AM | #53 |
WHEE!
Name: Andrew
Location: VA
Join Date: Apr 2009 Motorcycle(s): 2009 Black Kawi 250R Posts: 91
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hmm.. can someone do a video on jetting and shimming?
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2009 Metallic Diablo Black Ninja 250R 6000K H7 HIDs | Targa Fender Eliminator Pazzo Levers | PROGRIP Tank Pad |
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June 19th, 2009, 11:59 AM | #54 |
ninjette.org member
Name: James
Location: Ontario
Join Date: Apr 2009 Motorcycle(s): 2009 250r special edition Posts: 84
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August 24th, 2009, 06:57 PM | #55 |
ninjette.org member
Name: James
Location: GE
Join Date: Aug 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 31
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Great little mod, wish I would have known it was that easy. One quick question, So looking at one of the picures posted it looks like the air filter you pulled is just a prefilter. Is there another one in the airbox or is that just a screen?
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August 24th, 2009, 07:21 PM | #56 |
Join Date: Nov 2008 Posts: Too much.
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Yes, that is the foam air filter for the bike. There is a metal screen after that towards he carbs, but I think it's there for backfire protection
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August 24th, 2009, 09:55 PM | #57 |
ninjette.org member
Name: James
Location: GE
Join Date: Aug 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 31
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What do you just wash it with gas or something when its dirty? Like a lawn mower filter.
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August 24th, 2009, 10:37 PM | #58 |
Join Date: Nov 2008 Posts: Too much.
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exactly the same. reoil after it's clean and dry.
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August 25th, 2009, 07:44 PM | #59 |
ninjette.org member
Name: James
Location: GE
Join Date: Aug 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 31
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Just did mine.....Piece of cake!
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August 25th, 2009, 07:51 PM | #60 |
Ramen Rider
Name: Gary
Location: Honolulu, Hawaii
Join Date: Jan 2009 Motorcycle(s): 2015 BMW R1200R, 08 Honda VFR800A (sold), 09 Ninja 250R (sold) Posts: A lot.
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August 28th, 2009, 03:04 AM | #61 |
ninjette.org member
Name: xaris
Location: greece
Join Date: Aug 2009 Motorcycle(s): what else? Posts: 121
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If I do this mod and I don't like the result, can i put it back without problems? Will i need to apply glue on it?
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August 30th, 2009, 10:23 AM | #62 |
ninjette.org member
Name: Clint
Location: Utah
Join Date: Aug 2009 Motorcycle(s): 2009 ER-6n 2009 Ninja 250 sold :( Posts: 61
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I just wanted to add my experience with this mod for anyone that is thinking about doing it. I mostly ride between 4600 and 10500 feet above sea level and while the bike felt decent for a 250 down near the bottom of that range it was definitely struggling at the top. I went on a ride with some co-workers a couple weeks after I bought the bike and our trip to Wyoming and back had us up to an altitude of 10000 feet at one point and my poor little Ninja would not accelerate past 50 mph.
When I returned from my ride I found this forum and this DIY and I decided to pull the snorkel to see if it would lean the bike out enough to help any. I did notice a small but positive difference in acceleration and throttle response down in the valley, but i noticed the biggest difference the first time I headed up the canyon. The bike no longer felt like it was going to die when I accelerated out of a corner at higher altitudes and I was able to accelerate past 50 mph without any problems. I decided this was a good first mod because it is completely reversible. Other's may feel differently but I wouldn't worry about using any adhesive when re-installing the snorkel, it seems to fit pretty tight.
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"Never argue with an idiot, they will just drag you down to their level and beat you with experience" -Unknown |
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August 30th, 2009, 10:28 AM | #63 |
Join Date: Nov 2008 Posts: Too much.
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yes, this mod opens up the top end. you may now be a bit lean it the midrange/bottom end. I would recommend you try shimming to richen up the low/mid a bit for a bit more power from a stop and a bit more oomph in the low-midrange.
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August 30th, 2009, 10:41 AM | #64 |
ninjette.org certified postwhore
Name: Sam
Location: Northern Virginia
Join Date: Nov 2008 Motorcycle(s): Ninja 250R 2009 Posts: A lot.
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Having reinstalled my snorkel, I will vouch that it does not need any adhesive. It is a lot harder to install than remove!
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August 30th, 2009, 03:13 PM | #65 | |
ninjette.org member
Name: Clint
Location: Utah
Join Date: Aug 2009 Motorcycle(s): 2009 ER-6n 2009 Ninja 250 sold :( Posts: 61
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Quote:
Last weekend I finally got the time to replace the airbox with some pod filters and try some shimming and jetting. It has made quite a noticeable difference for me over stock jetting and a removed snorkel. I will post my findings in the jetting thread once I get my exhaust installed later this week.
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"Never argue with an idiot, they will just drag you down to their level and beat you with experience" -Unknown |
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August 30th, 2009, 05:24 PM | #66 |
Join Date: Nov 2008 Posts: Too much.
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Thanks, Clint. That would be appreciated.
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September 1st, 2009, 04:43 PM | #67 |
ninjette.org member
Name: James
Location: GE
Join Date: Aug 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 31
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Yeah I have two washers on both carbs. I think it woke the bike up some. It absolutly sounds better. I rode for about two weeks with just the shims, seemed a little rich, now it is getting more air with snorkle removed, I think? Maybe it is all in my head So now with the air/fuel ratio relatively the same it runs and ride real good. Next mod will be the 15T sprocket.
So at what point can I remove the whole air box? Can I just add more washers? How many washers is too many? Maybe someone with more smarts can come up with a flow chart showing what things are needed with what mod. For example!!! 1 washer good with no mod for smoother/better start up 2 washers good with snorkle removed 3 washers good with high flow aftermarket air filter 4 washers good with airbox removed/filter pod installed Do you smell what a10forwar is cookin? |
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September 1st, 2009, 05:04 PM | #68 |
Join Date: Nov 2008 Posts: Too much.
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September 6th, 2009, 08:55 AM | #69 |
ninjette.org member
Name: James
Location: GE
Join Date: Aug 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 31
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You the man!!
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September 14th, 2009, 12:06 PM | #70 |
ninjette.org member
Name: Jason
Location: Evanston, Wyoming
Join Date: Jul 2009 Motorcycle(s): 2009 Kawi Ninja 250, Blue Posts: 28
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After reading this thread, I wanted to share my experience so far.
I went over a 7kft+ pass on one fun ride, and my bike was acting like there was a subtle, random cut in power at WOT in 5th and 6th. It wouldn't maintain 60mph going up relatively gentle uphill climbs. Acted gutless. I had to downshift to 4th sometimes to maintain velocity. The next day before my other long ride, I removed the snorkel. I went over Mirror Lake Highway at over 11kft, and the bike was much better. I still had to downshift to 5th to get good climbing power, but there wasn't that bogging feeling anymore, and it would cruise WOT in 6th without random cutting. Once I got over the pass and took a break at the bottom, the only thing that needed tweaking was the idle speed, as it climbed to about 2k instead of the normal 1250 I have it set at. The bottom end feels fine and the upper end extended the shift point from about 10k to 11k for me. Throttle response is perfect. In Evanston, my base altitude is 7,000 feet, so the bike probably runs rich with the snorkel and pretty close to perfect (by feel) with it removed. I am going to check the plugs as part of my 600 mile service and see how the color is post-snorkel mountain blasting. |
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September 14th, 2009, 12:25 PM | #71 |
Join Date: Nov 2008 Posts: Too much.
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Jason... have you done anything to the carbs along w/ the snorkel removal?
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September 14th, 2009, 05:38 PM | #72 | |
ninjette.org member
Name: Clint
Location: Utah
Join Date: Aug 2009 Motorcycle(s): 2009 ER-6n 2009 Ninja 250 sold :( Posts: 61
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Quote:
Just pulling the snorkel helped me at higher altitudes too and I was quite pleased with the bike, but now that I have done a few more things I don't know that I could go back to just removing the snorkel. If you are considering removing the airbox or rejetting/shimming/adjusting the pilot screws on the carb I would highly recommend it, my bike runs a lot better now that I have...If that's not something you want to do then removing the snorkel is a great way to get some high altitude performance, and best of all it's free!
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"Never argue with an idiot, they will just drag you down to their level and beat you with experience" -Unknown |
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September 15th, 2009, 04:36 PM | #73 |
ninjette.org member
Name: Jason
Location: Evanston, Wyoming
Join Date: Jul 2009 Motorcycle(s): 2009 Kawi Ninja 250, Blue Posts: 28
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Kelly,
I have not adjusted the carbs at all. I simply removed the snorkel with positive effects. I'm not planning on adjusting anything else until I save up for my AreaP exhaust. That will probably end up being around when the snow melts in the spring. Clint, I guessed that 150 was the route you took earlier. Perhaps a Ninjette meet/cruise is in order in Utah some day. |
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September 15th, 2009, 04:39 PM | #74 |
Join Date: Nov 2008 Posts: Too much.
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must have something to do with the altitude you guys are at. most times if no carbs adjustments are done w/ the snorkel pulled, the midrange gets a bit lean and will surge at highway speeds when using a steady throttle opening. good to know it works well in your case w/o having to fiddle with the carbs.
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October 11th, 2009, 11:58 PM | #75 |
ninjette.org certified postwhore
Name: Bob
Location: CA
Join Date: Dec 2008 Motorcycle(s): '08 Ninja 250r, '14 CBR500r Posts: A lot.
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I FINALLY tried this mod this weekend, and while I am still in the "testing phase," it does seem to suddenly suck in the mid range. I'm not sure if there is an improvement high or low yet, as I am still adjusting to the new sound, which may affect the perception of power (like smell does to taste). I do have 2 washers under each needle, so I wonder if I should add a 3rd.... does that sound reasonable?
Since I have tomorrow off, I was planning on drilling the slides too. I know there is no relation between these two mods, but I have noticed that when I try to turn on the power, it spools up like a jet engine.... that is after several commitee meetings and a majority vote. I'm lookin to rectify this too. |
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December 27th, 2009, 12:28 PM | #76 |
ninjette.org member
Name: Chris
Location: LA
Join Date: Dec 2009 Motorcycle(s): 250r Posts: 199
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Pictures not working for anyone else?
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December 27th, 2009, 12:40 PM | #77 |
Join Date: Nov 2008 Posts: Too much.
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I just created an album with the pictures. Unfortunately, I can't edit the original post to include them. Hope this helps.
http://picasaweb.google.com/kkim993/Snorkel# |
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May 29th, 2010, 06:41 PM | #78 |
ninjette.org certified postwhore
Name: Sam
Location: Northern Virginia
Join Date: Nov 2008 Motorcycle(s): Ninja 250R 2009 Posts: A lot.
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I broke down and bought a K&N panel air filter and installed it today. While I had the side panel off, I also removed the snorkel (again). It's a fact that the snorkel can be removed without removing the right rear fairing!
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August 31st, 2010, 06:59 PM | #79 |
ninjette.org member
Name: Jon
Location: DF to the W
Join Date: Jun 2010 Motorcycle(s): Ninjette(sold), 2011 ZX-10r Posts: 66
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kkim, do you think if you drilled holes with a small spade bit on the sides of the snorkel that it would have the same effect as completely removing it?
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August 31st, 2010, 07:14 PM | #80 |
ninjette.org member
Name: mike
Location: troy missouri
Join Date: Aug 2010 Motorcycle(s): 2009 ninja 250r, 2009 buell xb12ss Posts: 28
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pulled the snorkel out on the wife's bike the other day and found a sharpie stick in it! wtf! lol
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