quick fix is turning into a project

b_eastep · January 24th, 2010, 09:56 AM

so on my old ladys 07 250 i noticed a boot came off one of the carbs between the filter box and the carb. its always idled a little funny so i guess this could be the cause. couldnt get it back on without pulling the airbox. so of course being the patient person i am i destroyed the airbox getting it out. was just gonna order a pod filter but i need to go ahead and pull the carbs and clean them and check them all out. dont know much about vaccume operated carbs so im gonna be asken some questions. any problem areas i really need to be concerned about while im in there?
i do my own powdercoating so im thinken this is gonna turn into a lot more than just fixen the carb boot. this thing may just end up in pieces in the next coupla weeks. not real familiar with this little 250 yet since iv only had it since last summer so any of you guys know of any inherent problems with these bikes that i need to check out while im in there will be appreciated. thanks guys.

b_eastep · January 24th, 2010, 10:04 AM

oh, and i will be running a kn 0990 if you guys have any jetting suggestions. im at about 1000 ft in oklahoma. pretty much all warm to hot weather riding conditions.

iceman.kcmo · January 24th, 2010, 02:40 PM

Your going to have to do a jet kit if your going with filter pods... Otherwise it will NOT run right.

nate-bama · January 24th, 2010, 03:02 PM

buy some 108 and 110 main jets and a couple small ..3 or 4mm flat washers help me if im wrong about the washer size and you'll save alot of money over a jet kit..105 is the stock size main jet and with a stock exhaust my bike ran great with the 108's and good with the 110

use the washers to shim your needles

b_eastep · January 24th, 2010, 04:43 PM

Quote:

Originally Posted by nate-bama

buy some 108 and 110 main jets and a couple small ..3 or 4mm flat washers help me if im wrong about the washer size and you'll save alot of money over a jet kit..105 is the stock size main jet and with a stock exhaust my bike ran great with the 108's and good with the 110

use the washers to shim your needles

thats the type of info i was talken about. i knew id have to rejet but know nothing about what size the mains are stock. didnt want to have to tear it apart and look and have it apart the whole time im gathering parts. anything else will be greatly appreciated. thanks guys.

M · January 24th, 2010, 08:52 PM

You should be able to re-jet it with 108s and washer shim. The washers should be #4 but if you cannot find those, then get some with 2.5 - 3mm inside diameter.

As for the off idle, it could be a vacuum leak, or you might want to consider adjusting the valves and then syncing the carbs.

b_eastep · January 25th, 2010, 09:39 AM

looks like im going to be doing the valve and sync thing also. although iv never done either of those to a streetbike. i dont have a sync tool but may be able to borrow one from someone or rig something up.
great info guys. will save me a lot of looking around and downtime. keep it comming.

Momaru · January 25th, 2010, 10:31 AM

Here's a handy DIY on the carb syncing and a how-to for making your own simple sync gauge. It's written using a new-gen but should apply to pre-gens as well.
http://www.ninjette.org/forums/showthread.php?t=9754

b_eastep · June 14th, 2010, 03:05 PM

got it back together. pod filter and 108s. had it shimmed but spent 3 days troubleshooting my idle problem that was there before but got worse after i put it back together. just about drove me crazy. after pulling the carbs off prob 5 or 6 times i found a clogged pilot jet. idles great now. ill just have to go back later and shim the needles. just got to putt around the yard to check it out but seems to run great. ill find out more when it quits raining.

iceman.kcmo · June 25th, 2010, 02:45 PM

what did you end up doing with the battery?

nate-bama · June 25th, 2010, 03:35 PM

for some reason my pilot jets clog quick a hard 30 minute ride un gums them

b_eastep · June 25th, 2010, 03:47 PM

cut the batter box section off the airbox and bolted it back in.

run some seafoam through it.

bike runs great. better than it ever did. just road it a short while about 20 miles but will pull 108 indicated and sounds great with the pod filter. old lady road it on a short bout 30 mile ride today and ran fine. will put about 120 miles on it tomorrow.

January 24th, 2010, 09:56 AM	#1
b_eastep ninjette.org member Name: Brad Location: Elmore City Oklahoma Join Date: Jun 2009 Motorcycle(s): 07 Z-1000, 07 Ninja 250, 04 Honda Aero Posts: 106	quick fix is turning into a project so on my old ladys 07 250 i noticed a boot came off one of the carbs between the filter box and the carb. its always idled a little funny so i guess this could be the cause. couldnt get it back on without pulling the airbox. so of course being the patient person i am i destroyed the airbox getting it out. was just gonna order a pod filter but i need to go ahead and pull the carbs and clean them and check them all out. dont know much about vaccume operated carbs so im gonna be asken some questions. any problem areas i really need to be concerned about while im in there? i do my own powdercoating so im thinken this is gonna turn into a lot more than just fixen the carb boot. this thing may just end up in pieces in the next coupla weeks. not real familiar with this little 250 yet since iv only had it since last summer so any of you guys know of any inherent problems with these bikes that i need to check out while im in there will be appreciated. thanks guys.

January 25th, 2010, 10:31 AM	#8
Momaru ninjette.org certified postwhore Name: Paul Location: Roanoke, VA Join Date: Jun 2009 Motorcycle(s): 2008 Candy Plasma Blue 250R Posts: A lot.	Here's a handy DIY on the carb syncing and a how-to for making your own simple sync gauge. It's written using a new-gen but should apply to pre-gens as well. http://www.ninjette.org/forums/showthread.php?t=9754 __________________________________________________ Proud member of the Blue Army

June 25th, 2010, 03:35 PM	#11
nate-bama North Alabama Mtn. ryder Name: Nate Location: Alabama Join Date: May 2009 Motorcycle(s): 2006 Posts: 537	for some reason my pilot jets clog quick a hard 30 minute ride un gums them __________________________________________________ QTRltrPWR

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January 24th, 2010, 10:04 AM	#2
b_eastep ninjette.org member Name: Brad Location: Elmore City Oklahoma Join Date: Jun 2009 Motorcycle(s): 07 Z-1000, 07 Ninja 250, 04 Honda Aero Posts: 106	oh, and i will be running a kn 0990 if you guys have any jetting suggestions. im at about 1000 ft in oklahoma. pretty much all warm to hot weather riding conditions.

January 24th, 2010, 02:40 PM	#3
iceman.kcmo ninjette.org member Name: Steve Location: Kansas city Join Date: Aug 2009 Motorcycle(s): 94 Ex250 Posts: 101	Your going to have to do a jet kit if your going with filter pods... Otherwise it will NOT run right.

January 24th, 2010, 03:02 PM	#4
nate-bama North Alabama Mtn. ryder Name: Nate Location: Alabama Join Date: May 2009 Motorcycle(s): 2006 Posts: 537	buy some 108 and 110 main jets and a couple small ..3 or 4mm flat washers help me if im wrong about the washer size and you'll save alot of money over a jet kit..105 is the stock size main jet and with a stock exhaust my bike ran great with the 108's and good with the 110 use the washers to shim your needles __________________________________________________ QTRltrPWR Last futzed with by nate-bama; January 24th, 2010 at 03:03 PM. Reason: with k&N pods

January 24th, 2010, 08:52 PM	#6
M ninjette.org member Name: M Location: Oklahoma Join Date: Jun 2009 Motorcycle(s): Ninja 250 x2, Ninja 650R Posts: 165	You should be able to re-jet it with 108s and washer shim. The washers should be #4 but if you cannot find those, then get some with 2.5 - 3mm inside diameter. As for the off idle, it could be a vacuum leak, or you might want to consider adjusting the valves and then syncing the carbs.

January 25th, 2010, 09:39 AM	#7
b_eastep ninjette.org member Name: Brad Location: Elmore City Oklahoma Join Date: Jun 2009 Motorcycle(s): 07 Z-1000, 07 Ninja 250, 04 Honda Aero Posts: 106	looks like im going to be doing the valve and sync thing also. although iv never done either of those to a streetbike. i dont have a sync tool but may be able to borrow one from someone or rig something up. great info guys. will save me a lot of looking around and downtime. keep it comming.

June 14th, 2010, 03:05 PM	#9
b_eastep ninjette.org member Name: Brad Location: Elmore City Oklahoma Join Date: Jun 2009 Motorcycle(s): 07 Z-1000, 07 Ninja 250, 04 Honda Aero Posts: 106	got it back together. pod filter and 108s. had it shimmed but spent 3 days troubleshooting my idle problem that was there before but got worse after i put it back together. just about drove me crazy. after pulling the carbs off prob 5 or 6 times i found a clogged pilot jet. idles great now. ill just have to go back later and shim the needles. just got to putt around the yard to check it out but seems to run great. ill find out more when it quits raining.

June 25th, 2010, 02:45 PM	#10
iceman.kcmo ninjette.org member Name: Steve Location: Kansas city Join Date: Aug 2009 Motorcycle(s): 94 Ex250 Posts: 101	what did you end up doing with the battery?

June 25th, 2010, 03:47 PM	#12
b_eastep ninjette.org member Name: Brad Location: Elmore City Oklahoma Join Date: Jun 2009 Motorcycle(s): 07 Z-1000, 07 Ninja 250, 04 Honda Aero Posts: 106	cut the batter box section off the airbox and bolted it back in. run some seafoam through it. bike runs great. better than it ever did. just road it a short while about 20 miles but will pull 108 indicated and sounds great with the pod filter. old lady road it on a short bout 30 mile ride today and ran fine. will put about 120 miles on it tomorrow.