Bought a Ninja 250 today 5/16/11 - Page 2

exploring/carolina · May 18th, 2011, 07:16 PM

Quote:

Originally Posted by Alex

MCN tested them awhile back, they found them to not work at all. YMMV.

Always wondered how Dyna Beads are supposed to work.

kkim · May 18th, 2011, 07:20 PM

Quote:

Originally Posted by exploring/carolina

This is my first motorcycle carburetor, so I may have questions.

I'd be more than happy to help if I can.

exploring/carolina · May 19th, 2011, 05:44 AM

Quote:

Originally Posted by kkim

I'd be more than happy to help if I can.

Going on a mountain Street/DS ride tomorrow, but will be able to spend all day Saturday working on the Ninja.

Will post questions.

Thanks,

exploring/carolina · May 19th, 2011, 08:15 AM

Quote:

Originally Posted by kkim

I'd be more than happy to help if I can.

Been reading through the jetting threads and you guys got me thinking

.

Since the air box is difficult to deal with while removing the carburetor, thinking about rejetting while I got the carburetor out, removing the airbox & installing K & N pod air filters

.

Can remove the airbox when I change the rear tire next week. Don't want to mess with the exhaust, yet.

Been looking at this thread:

http://www.ninjette.org/forums/showthread.php?t=11178

Is there common jet sizes used in this group when removing the air box only?

Can order different sizes to experiment with from Jets-R-Us so I will only pay shipping once.

This is "all" the Ninja modifications I want to do right now. Got to finish my
80 Honda CX500D Street Tracker project, first.

Showed my wife Street Fighters on line, and she likes them. Guess I will not keep the Ninja stock afterall and when I finish the Honda Street Tracker project, will build a Ninja 250 Street Fighter

.

Street Tracker Project:

kkim · May 19th, 2011, 11:34 AM

Bill,

Exactly how much riding experience does your wife have? Removing the airbox does give the bike the ability to pull harder in the top end, but sacrifices some low end power, that to me, would make the bike more user unfriendly. plus, the pregens seem to be more difficult to jet, compared to the newgens, once you remove the airbox. http://faq.ninja250.org/wiki/Rejetti...ng_pod_filters

remove the main and pilot jets, blow them out with compressed air and visually inspect the jet centers for unobstructed center holes. http://www.ninjette.org/forums/showthread.php?t=65198

blow out the carb passages with compressed air as well. with the carb passages, try to blow the compressed air in the opposite direction that the gas flows through the passages.

remove the top of the carbs to shim the needles. read the DIY on shimming carb needles. Careful when you handle the slide diaphragms inside the carbs... they are about $100 each.

I have added 2ea, 3mm shims to a stock pregen before with excellent results.... no other jetting changes.

what pilot and main jet sizes are in there now?

http://faq.ninja250.org/wiki/How_to_...e_your_jetting

exploring/carolina · May 19th, 2011, 02:47 PM

Quote:

Originally Posted by kkim

Bill,

Exactly how much riding experience does your wife have?

what pilot and main jet sizes are in there now?

From what you are saying, rejetting with pod filters will not be the right combination for my wife since I don't want to lose low end power because of her lack of road experience. Agree, want to keep her bike "user" friendly.

Also sounds like if the pre-gens are more difficult to re-jet, makes my mind up to keep the carburetor/air box stock.

It's got 38/105 jets in it.

Appreciate the tips/advice & links.

Will be riding tomorrow and back working on the Ninja project Saturday. Will post progress.

Thanks,

kkim · May 19th, 2011, 03:01 PM

yes, removing the airbox does make it not as beginner user friendly, IMHO.

shim the needles and your wife will love you for it. combined with the tire change, which should lower the bike a bit plus make it way stickier than what's on the there now, will make her very happy with the bike, I'm sure. You know the saying... happy wife, happy home.

n4mwd · May 19th, 2011, 03:12 PM

Quote:

Originally Posted by exploring/carolina

Showed my wife Street Fighters on line, and she likes them. Guess I will not keep the Ninja stock afterall and when I finish the Honda Street Tracker project, will build a Ninja 250 Street Fighter

.

If by, "Street Fighter" you mean taking all the plastics off, I suggest you hang on to them because the lack of plastic will drop your resale price by about $800 should you ever decide to sell and get a bigger Ninja.

exploring/carolina · May 19th, 2011, 04:04 PM

Quote:

Originally Posted by kkim

yes, removing the airbox does make it not as beginner user friendly, IMHO.

shim the needles and your wife will love you for it. combined with the tire change, which should lower the bike a bit plus make it way stickier than what's on the there now, will make her very happy with the bike, I'm sure. You know the saying... happy wife, happy home.

Agree, This is her bike and she really likes it what I am doing to it.

Thanks,

exploring/carolina · May 19th, 2011, 04:06 PM

Quote:

Originally Posted by n4mwd

If by, "Street Fighter" you mean taking all the plastics off, I suggest you hang on to them because the lack of plastic will drop your resale price by about $800 should you ever decide to sell and get a bigger Ninja.

Will keep all of the plastics stored. You are right about her possibly wanting a larger bike one day.

Thanks!

exploring/carolina · May 22nd, 2011, 07:05 AM

Quote:

Originally Posted by kkim

Bill,

remove the main and pilot jets, blow them out with compressed air and visually inspect the jet centers for unobstructed center holes. http://www.ninjette.org/forums/showthread.php?t=65198

blow out the carb passages with compressed air as well. with the carb passages, try to blow the compressed air in the opposite direction that the gas flows through the passages.

I have added 2ea, 3mm shims to a stock pregen before with excellent results.... no other jetting changes.

http://faq.ninja250.org/wiki/How_to_...e_your_jetting

OK, Progress so far:

Cleaned the jets and found one main jet with partial blockage. Cleaned out with shop air.

Also found one of the float needle retainer/clips with the needle "not" retained by the clip. Corrected this. PO had MC shop to clean carb where this probably happened.

The float needle tapered tips look good.

Will look this afternoon for needle shims.

Edit:

Could not find 3MM washers locally this afternoon. Found some #4 stainless washers at Lowes. The stackup for two #4 washers are 1/16" combined. Not sure how thick 3MM washers are. Will give the #4 washers a try.

Thanks,

exploring/carolina · May 31st, 2011, 06:02 PM

The following photos were taken today before the first "real" test ride. Installed the set of Pirelli tires and put the bike back together. Got it inspected, insured, and new tags today.

Found the closest twistys and had loads of fun on the Ninja before dark. Sweet Bike! Ran it up to 12,000 RPM and it pulls strong without any issues. Will take it to the mountains tomorrow in search for more twistys.

My wife is learning to ride, so I am getting the bike ready

for her!

exploring/carolina · June 6th, 2011, 12:42 PM

It worked out removing the old failed tank liner and relining the fuel tank with POR 15 & installing inline fuel filter. Was not a POR 15 liner that failed.

The modified air/battery box is working well, too. Should be easy to remove the carburetor next time.

http://www.ninjette.org/forums/showthread.php?t=74317

Only thing left to replace will be fork seals & oil. The seals were leaking on the last mountain ride, got them on order today.

Sanded the exhaust system and painted with 2000F primer & flat black paint.

Will start additional modifications to the Ninja this winter!

Really enjoy riding the Ninja in the mountains!

n4mwd · June 6th, 2011, 01:08 PM

Make sure you test those twisties really good. A few thousand miles of them should be enough. You wouldn't want the wife to complain about them not being fun enough.

exploring/carolina · June 6th, 2011, 01:25 PM

Quote:

Originally Posted by n4mwd

Make sure you test those twisties really good. A few thousand miles of them should be enough. You wouldn't want the wife to complain about them not being fun enough.

Agree!

Told my wife I will be sure there are no problems with "her" bike.

Of course will have to go on another all day twisty ride to test the new fork seals & oil!!!

kkim · June 6th, 2011, 02:52 PM

Quote:

Originally Posted by exploring/carolina

Agree!

Told my wife I will be sure there are no problems with "her" bike.

Of course will have to go on another all day twisty ride to test the new fork seals & oil!!!

let me know... I'm sure we can continue to find "safety" issues that need to be addressed before the bike is deemed safe enough for the wife.

exploring/carolina · June 6th, 2011, 03:00 PM

Quote:

Originally Posted by kkim

let me know... I'm sure we can continue to find "safety" issues that need to be addressed before the bike is deemed safe enough for the wife.

It's a never ending job!

Work on it, ride it, work on it, ride it.........Love my job!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Bought a 250 today.	Desmoluci	General Motorcycling Discussion	24	April 22nd, 2014 04:14 PM
Just bought my 2010 ninja today	caineroad	General Motorcycling Discussion	11	September 21st, 2013 06:11 AM
Bought my first ninja today!	Driddle	Pictures	9	June 28th, 2013 01:49 PM
Look what I bought today	Yasko	General Motorcycling Discussion	22	December 8th, 2010 10:17 PM
Bought gear today	Focus Mike	Motorcycle Gear	20	December 29th, 2009 08:03 PM

May 19th, 2011, 11:34 AM	#45
kkim Join Date: Nov 2008 Posts: Too much.	Bill, Exactly how much riding experience does your wife have? Removing the airbox does give the bike the ability to pull harder in the top end, but sacrifices some low end power, that to me, would make the bike more user unfriendly. plus, the pregens seem to be more difficult to jet, compared to the newgens, once you remove the airbox. http://faq.ninja250.org/wiki/Rejetti...ng_pod_filters remove the main and pilot jets, blow them out with compressed air and visually inspect the jet centers for unobstructed center holes. http://www.ninjette.org/forums/showthread.php?t=65198 blow out the carb passages with compressed air as well. with the carb passages, try to blow the compressed air in the opposite direction that the gas flows through the passages. remove the top of the carbs to shim the needles. read the DIY on shimming carb needles. Careful when you handle the slide diaphragms inside the carbs... they are about $100 each. I have added 2ea, 3mm shims to a stock pregen before with excellent results.... no other jetting changes. what pilot and main jet sizes are in there now? http://faq.ninja250.org/wiki/How_to_...e_your_jetting

May 19th, 2011, 03:01 PM	#47
kkim Join Date: Nov 2008 Posts: Too much.	yes, removing the airbox does make it not as beginner user friendly, IMHO. shim the needles and your wife will love you for it. combined with the tire change, which should lower the bike a bit plus make it way stickier than what's on the there now, will make her very happy with the bike, I'm sure. You know the saying... happy wife, happy home.

May 31st, 2011, 06:02 PM	#52
exploring/carolina ninjette.org guru Name: Bill Location: NC Join Date: Apr 2011 Motorcycle(s): Ninja 250 Posts: 282	The following photos were taken today before the first "real" test ride. Installed the set of Pirelli tires and put the bike back together. Got it inspected, insured, and new tags today. Found the closest twistys and had loads of fun on the Ninja before dark. Sweet Bike! Ran it up to 12,000 RPM and it pulls strong without any issues. Will take it to the mountains tomorrow in search for more twistys. My wife is learning to ride, so I am getting the bike ready for her!

June 6th, 2011, 12:42 PM	#53
exploring/carolina ninjette.org guru Name: Bill Location: NC Join Date: Apr 2011 Motorcycle(s): Ninja 250 Posts: 282	It worked out removing the old failed tank liner and relining the fuel tank with POR 15 & installing inline fuel filter. Was not a POR 15 liner that failed. The modified air/battery box is working well, too. Should be easy to remove the carburetor next time. http://www.ninjette.org/forums/showthread.php?t=74317 Only thing left to replace will be fork seals & oil. The seals were leaking on the last mountain ride, got them on order today. Sanded the exhaust system and painted with 2000F primer & flat black paint. Will start additional modifications to the Ninja this winter! Really enjoy riding the Ninja in the mountains!

June 6th, 2011, 01:08 PM	#54
n4mwd ninjette.org certified postwhore Name: D Location: Palm Beach, FL Join Date: Oct 2010 Motorcycle(s): 2006 Ninja 250R, 2007 EFI Ninja 250R Posts: A lot. Blog Entries: 1	Make sure you test those twisties really good. A few thousand miles of them should be enough. You wouldn't want the wife to complain about them not being fun enough.