July 15th, 2009, 10:14 PM | #441 |
ninjette.org member
Name: Jordan
Location: Calgary
Join Date: May 2009 Motorcycle(s): 2009 ex250 Posts: 98
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Ok, I think these pictures illustrate why I was having problems. The larger washer is the first one I tried, the smaller are the ones I picked up from a local RC hobby shop the other day. The first picture shows the difference in height. Are the washers you guys have used that thin? Should I be expecting to have to use a minimum of 3 with stock exhaust and no snorkel?
The new ones are: ID = 3mm OD = 6mm I think that should work a hell of a lot better than the Cambodian Tire ones. Last futzed with by NaughtyusMaximus; July 15th, 2009 at 11:51 PM. |
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July 15th, 2009, 10:51 PM | #442 |
ninjette.org member
Name: Chris
Location: Georgia
Join Date: May 2009 Motorcycle(s): 09 ninja 250(red) Posts: 193
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This is the size the washers need to be.
ID = 0.1250" , 1/8" , 3.175mm OD = 0.3750" , 3/8" , 9.525mm thickness = 0.0400" , 1.016mm |
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July 25th, 2009, 11:15 AM | #443 | |
ninjette.org member
Name: Jordan
Location: Calgary
Join Date: May 2009 Motorcycle(s): 2009 ex250 Posts: 98
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Just an update, I put these in last night, and the washers were the exact right size. The OD is about the same as the needle head even. The bike runs better than ever!
A warning to other noobs doing this though, be sure that you have vaseline handy in case you have to re-seat the diaphragm. Also, a second mode of transport in case you junk up one or more of the screws like I did, so that you can get replacements without having to ride the bike with screws which might not be as tight as they should be. Heed this warning from another thread, this is a $100 cock up: Quote:
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September 9th, 2009, 10:34 AM | #444 |
ninjette.org newbie
Name: Eric
Location: Ewing NJ
Join Date: Jul 2009 Motorcycle(s): 2009 Ninja 250R SE Posts: 9
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Does anyone know what screws we can replace the JIS ones with on the carb covers? Would Home Depot or Lows sell that size?
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September 9th, 2009, 10:48 AM | #445 |
Join Date: Nov 2008 Posts: Too much.
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September 9th, 2009, 11:07 AM | #446 |
Hppowdercoating
Name: Tim
Location: St. Charles, MO
Join Date: May 2009 Motorcycle(s): 09-250R Posts: 170
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Screws...
Yes i got Mine from Home Depot...
__________________________________________________
HP-POWDERCOATINGS.COM http://i52.photobucket.com/albums/g2...100_3312-1.jpg |
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September 10th, 2009, 06:05 AM | #447 | |
ninjette.org newbie
Name: Eric
Location: Ewing NJ
Join Date: Jul 2009 Motorcycle(s): 2009 Ninja 250R SE Posts: 9
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Quote:
__________________________________________________
It's time to kick ass and chew bubble gum... and I'm all outta gum! |
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September 10th, 2009, 11:27 AM | #448 |
Join Date: Nov 2008 Posts: Too much.
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October 3rd, 2009, 09:48 PM | #449 |
ninjette.org member
Name: Matthew
Location: New York
Join Date: Aug 2009 Motorcycle(s): None Posts: 87
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I will name my firstborn son (the wife better or she'll have to answer some questions!) after you Kelly. And his middle name will be Gary. Great GREAT GREATTT MOD!
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October 7th, 2009, 10:13 AM | #450 |
ninjette.org member
Name: Eric
Location: Denton, Tx
Join Date: Sep 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 84
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Just shimmed up my carb needles last night. The mid range is great but now my top end rpms seem to bog a bit. Any guess as to why? I've also done the snorkel removal.
Two #4 washers under each needle snorkel removed stock exhaust |
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October 7th, 2009, 11:48 AM | #451 |
Join Date: Nov 2008 Posts: Too much.
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October 7th, 2009, 02:12 PM | #452 |
ninjette.org member
Name: Eric
Location: Denton, Tx
Join Date: Sep 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 84
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It isn't necessarily a bog but feels like something is holding it back. The engine is screaming, just not making any significant power. It starts at around 9kish and lasts until the redline. It is also sort of sluggish down low from 2.7k-4k it seems.
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October 7th, 2009, 02:40 PM | #453 |
Join Date: Nov 2008 Posts: Too much.
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removing the snorkel should have improved the 9k to redline power. also, w/ the washers, it should have improved your low to midrange power. try taking all or one washer out and see if the situation improves.
recheck all hoses, cables and the diaphragms when you work on the carbs. |
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October 12th, 2009, 12:11 AM | #454 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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just wondering what sort of washers people used for this mod, by this I mean the type of metal, i.e. stainless steel, alloy? I'm just asking because I want to do this mod but can't find alloy washers of this size in australia. I'm a bit concerned about electrolysis between the two metals in the carby. Being a ally carby and all
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October 12th, 2009, 12:24 AM | #455 |
Join Date: Nov 2008 Posts: Too much.
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4mm stainless steel or steel washers will work.
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October 12th, 2009, 12:55 AM | #456 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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You don't think electrolysis would be a problem though kkim?
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October 12th, 2009, 01:03 AM | #457 |
Join Date: Nov 2008 Posts: Too much.
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I had steel washers in my bike for a couple of months and had no problems when I went to pull them when I installed a jet kit later. The washers were even a bit rusty when they were installed and no interaction between dissimilar metals was seen.
this picture was taken at the time the jet kit was installed. http://lh4.ggpht.com/_geC920GCq38/SL...DSC04542-1.JPG while I'm not saying it could never happen, no problems have been noted to date from others that have shimmed that I am aware of. |
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October 12th, 2009, 01:17 AM | #458 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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Ok thanx kkim, I didn't think it would be that big of a deal considering it would be coated in fuel most of the time. I might still try to find alloy ones if I can though
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October 12th, 2009, 01:20 AM | #459 |
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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You COULD, but I believe the question has been asked before, and I am unaware of a single person that has had an issue with it. Although, if it gives you peace of mind, go for it.
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October 12th, 2009, 02:02 AM | #460 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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Thanks for all the help, I'm super exited cause this will be the first mod to my bike
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October 16th, 2009, 02:14 AM | #461 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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Well I shimmed my carb needles today and I am very impressed with the results. My bike is stock and all I've done is removed the snorkel and shimmed the needles. 2 washers either side. takes off better, and I love the mid range now. Thanx for the tips
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October 16th, 2009, 02:58 AM | #462 |
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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When mine was stock, 2 washers under each needle evened out the entire power curve, but after yanking the snorkle I lost the mid... I guess I'll be trying 3 next.
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October 17th, 2009, 03:53 PM | #463 |
ninjette.org member
Name: Matt
Location: Memphis, TN
Join Date: Jul 2009 Motorcycle(s): '09 Ninja 250R SE, '08 Yamaha R6 Posts: 46
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I did this mod today along with removing the snorkel. I still have the stock exhaust. I love the sound of the bike now that the snorkel is gone.
I used #4 washers and started off with 2 under each needle. I took the bike for a ride and the mid range seemed off...almost like it was bogging a little. Once the bike hits 8k rpm it takes off like everything is fine. I read some posts that suggested maybe it was too rich, so I removed a washer (leaving me with 1 washer on each needle). The bike at first seemed OK, but on the way home I could notice that it was severely lacking in the mid range. If you twist the throttle at 6-7k rpm it doesn't really go anywhere and you can almost feel that its kind of surging a little. Its not really a bog, but definitely not making power. By the time it gets to 8k rpm all seems fine. Should I have gone the other way and done 3 washers? I'm getting pretty good at removing the tank and needles, but I'd like to do it as little as possible. |
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October 17th, 2009, 04:04 PM | #464 |
Join Date: Nov 2008 Posts: Too much.
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sure, try 3.
make sure the bike is completely warmed up before you try evaluating the differences. btw, I would have done like you and went back to 1 shim, but you never know and experimentation is sometimes necessary to yield the best results. gl... let us know your results. |
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October 18th, 2009, 03:40 PM | #465 |
ninjette.org member
Name: Matt
Location: Memphis, TN
Join Date: Jul 2009 Motorcycle(s): '09 Ninja 250R SE, '08 Yamaha R6 Posts: 46
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Well, I put 3 shims in the bike and it seems to be running pretty well. The mid range still feels weak, but I never really used the mid range before either. The bike has always been better above 8k and it feels even better up there now. It's also pretty smooth taking off and accelerating.
I'll compare it to my buddies stock bike before we do this mod on his. I have to say that I am in love with the new sound. |
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October 21st, 2009, 12:01 AM | #466 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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Does any body know if this mod and snorkel removal will work on a 2006 zzr 250? I only ask because my friend just bought one.
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October 21st, 2009, 01:39 AM | #467 |
Join Date: Nov 2008 Posts: Too much.
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does the bike have the same warmup and driveability problems as the 250R? the carbs are the same so, if so, I don't see why not.
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October 21st, 2009, 04:32 AM | #468 |
ninjette.org member
Name: Robert
Location: sydney
Join Date: Sep 2009 Motorcycle(s): 250r Posts: 35
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The bike seems to start up and warm up ok, about the same as mine i guess. I really need to pull it apart to get a good look at it. might not even have a snorkel on it.
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October 30th, 2009, 07:26 PM | #469 |
Join Date: Nov 2008 Posts: Too much.
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November 6th, 2009, 07:22 PM | #470 |
ninjette.org member
Name: David
Location: Bay Area
Join Date: Aug 2009 Motorcycle(s): 08 Ninja 250R(red) 09 Ninja 650R(red) 08 PGO Buddy 150(Pamplona) Posts: 41
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hey guys, i'm thinking of doing the shim mod on my 08 but first i have a few questions...
First- My bike seems to be one of the "almost perfect" bikes; it usually takes only 30-90 seconds to warm up after sitting out side all night. It did sort of struggle to get of the line at a stop on a busy interesection once when i first got it but i have either learned to overcome this or it has stoped doing this. *So should i even try this or is my bike one that mightnot respond well to this??? Second- It seems that everyone is removing the snorkle and going striaght for 2 washers, now i wonder if (since my bike seems to work pretty well already) i go with only 1 washer and leave the snorkle in place will i get any benifit? or is there any possability that i might do harm by adding washers and leaving the snorkle in place? I just added a 650R to my stable so i now feel more comfortable playing with the 250 but i still love my bike and dont want to chance hurting her in any way. thanks for any info that might help. Last futzed with by HMB-ninja; November 9th, 2009 at 11:31 PM. Reason: Left the question out |
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November 8th, 2009, 11:30 AM | #471 |
ninjette.org member
Name: David
Location: Bay Area
Join Date: Aug 2009 Motorcycle(s): 08 Ninja 250R(red) 09 Ninja 650R(red) 08 PGO Buddy 150(Pamplona) Posts: 41
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Bueller?.........Bueller?..............Bueller?................anyone?
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November 8th, 2009, 02:50 PM | #472 |
IC2(SW)
Name: Kerry
Location: Pensacola
Join Date: Nov 2008 Motorcycle(s): . Posts: A lot.
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November 8th, 2009, 03:15 PM | #473 |
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 don't know if it is just me, but after I do something that improves performance (like shimming, fine tunning), and I notice an improvement, the next day or two it seems like things go back to the way they where. I ASSUME it is just my perception as I get used to the new feel, and the bike is exactly the same as it was after I tweaked it... I can't think of any other plausible explanation than that, and they usually say it is the simplest explanation that is the right one.
Has anyone else experienced this? |
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November 9th, 2009, 05:12 AM | #474 |
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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Bob, you're only paranoid....if you think you are!
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November 9th, 2009, 06:12 AM | #475 | |
Cat herder
Name: Gort
Location: A secret lair which, being secret, has an undisclosed location
Join Date: May 2009 Motorcycle(s): Aprilia RS660 Posts: A lot.
Blog Entries: 6
MOTM - Jul '18, Nov '16, Aug '14, May '13
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Quote:
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November 25th, 2009, 09:25 AM | #476 | |
ninjette.org member
Name: Matt
Location: Memphis, TN
Join Date: Jul 2009 Motorcycle(s): '09 Ninja 250R SE, '08 Yamaha R6 Posts: 46
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Quote:
Also the sound is still awesome with the snorkel out and the top end feels better. |
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November 25th, 2009, 12:42 PM | #477 |
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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+1 on my 3 too
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November 25th, 2009, 03:41 PM | #478 |
IC2(SW)
Name: Kerry
Location: Pensacola
Join Date: Nov 2008 Motorcycle(s): . Posts: A lot.
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November 25th, 2009, 04:58 PM | #479 |
.
Name: rock
Location: greenville, south carolina
Join Date: Jun 2009 Motorcycle(s): black Posts: A lot.
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My car doesn't run better after an oil change?
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November 25th, 2009, 05:34 PM | #480 |
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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