keihin cr carb group buy

angrycrow · July 23rd, 2009, 11:47 PM

Im looking for a couple (4 to be exact) people to go in on a group buy with me. the HARD RACING site sponsor from another 250 site said he would hook us up if we did a group buy. what im trying to buy is:

im just trying to get a little extra UMPH from my ninjette. yes yes "maybe you should just buy a bigger bike" but why would i want to sell this awesome bike which i bought for fairly cheap , and turn around and spend $9000-11000 on a new bike? for 400 big ones or less you can get that extra little something some of you are craving for without moving up in cc's. so there it is , anyone up for a group buy??????

Mista Bob · July 24th, 2009, 01:03 AM

If I still had my 250 I'd probably be in for this, but alas I don't.
Didn't know there was a carb alternative for the bike, awesome.

I miss mah 250.

empire00 · July 24th, 2009, 01:16 AM

gonna need some dyno charts for me to consider this

Racer x · July 24th, 2009, 03:22 AM

Do the CR carbs have a choke or cold start device ? Some racing carbs don't . I want to use them for the street.

g21-30 · July 24th, 2009, 04:17 AM

Quote:

Originally Posted by Racer x

Do the CR carbs have a choke or cold start device ? Some racing carbs don't . I want to use them for the street.

Based on the above picture, they have a choke.

shift_6 · July 24th, 2009, 06:34 AM

Quote:

Originally Posted by empire00

gonna need some dyno charts for me to consider this

id just be interested in seeing how much of a gain these give. i wanna keep the 250 for as long as possible

NaughtyusMaximus · July 25th, 2009, 02:03 AM

I might be interested depending on the price. Looks like I might have to get new carbs anyway...

angrycrow · July 25th, 2009, 04:05 AM

Quote:

Originally Posted by NaughtyusMaximus

I might be interested depending on the price. Looks like I might have to get new carbs anyway...

the orignal price is 425-435 i forget , BUT with the group buy well get a discount. As for the dyno chart the site sponsor said their locating a dyno , so the chart will be up as soon as they find one i guess.

CC Cowboy · July 25th, 2009, 09:11 AM

If they don't double the horsepower I'm not interested.

angrycrow · July 25th, 2009, 10:47 AM

Quote:

Originally Posted by CC Cowboy

If they don't double the horsepower I'm not interested.

LOL double the horse power?? do you think this is some kind of miracle carb? your better off installing a turbo kit for a couple G's

NaughtyusMaximus · July 25th, 2009, 10:50 AM

I'm out.

Getting married next weekend, can't afford to spend that much extra right now

NorCal_Ninjette · July 25th, 2009, 11:08 AM

Well going to fuel injection on this bike actually makes a net LOSS in HP in Europe...so I would assume changing carbs won't see much of a increase...
where you will see increases if you REALLY want them would be in:

porting and polishing the head
balancing/blueprinting the motor
racing camshafts
shaved or thinner head gasget for increased compression

but none of these are really worth doing on this bike...
maybe the increased compression
and maybe the camshafts...

HKr1 · July 25th, 2009, 01:04 PM

Quote:

Originally Posted by CC Cowboy

If they don't double the horsepower I'm not interested.

They feel like close to double

I put the CR's on a few bikes, they kick ass on cv carbs

If your interested in fuel economy, you wont be happy with them.

backinthesaddleagain · July 25th, 2009, 06:03 PM

Quote:

Originally Posted by angrycrow

LOL double the horse power?? do you think this is some kind of miracle carb? your better off installing a turbo kit for a couple G's

How bout a miracle carb diet?
Posted via Mobile Device

wyckedflesh · July 25th, 2009, 07:31 PM

Quote:

Originally Posted by NorCal_Ninjette

Well going to fuel injection on this bike actually makes a net LOSS in HP in Europe...

Slightly mistaken, the loss of power was not due to going to the fuel injection, but to meet the stricter regulations that could not be met with the carbs. Remember, in Europe the 250 falls into a different catagory of licensing then they do here in the US. Once someone figures out a solid aftermarket fuel controller, the Euro spec bikes will make more power then the US carbed bikes.

I have thought of spending the money for the CR carbs, but out of the box, the gain is going to be minimal. They will give you the best bang if you run a full exhaust, some good cylinder head work, and a way to adjust the timing to cope with the extra air and fuel. Until then, I will save my money up for all of that at once.

NorCal_Ninjette · July 25th, 2009, 07:44 PM

Well Factory Pro sells a 5+ degree advance woodruff key which takes care of the timing advancement...and while I assumed the loss in horsepower in Europe was from the Euro 3 emissions stuff, what it shows is that even with that taken off, FI would show us how the best fuel mix would be...so even with a good carb setup, the power gains from fuel/air would hit a ceiling because of the small motor...
more power could only really come by moving the rev ceiling higher...I would guess...

ztrack157 · July 25th, 2009, 09:40 PM

Well as I have posted on the other sites about this. Unless you are racing you SHOULD NOT BUY THIS! Bogs down in lower RPMS when you open the throttle it opens and you get way to much fuel. Your idle needs to be at about 3500 to not have any problems with them.

Nickds7 · July 26th, 2009, 10:22 AM

yea no way fuel injection would provide less power, unless it was poorly made.
I dont see where the increase would come from? we already can provide a good ammount of fuel with stock carbs.. This sounds like something that should be paired with other mods (turbo?).

Even on the mag where they bump the power up to 35hp, i dont think they replaced carbs (could be wrong)
Posted via Mobile Device

ztrack157 · July 26th, 2009, 10:59 AM

No they didn't upgrade the carbs. I don't believe they were available when they made their maxton runs. Our carbs are sufficient but someone will always buy something like this even when it is not needed because they have money burning a hole in their pocket. This is great for on track usage but using it for a strictly street application does not make sense in anyway shape or form.

July 23rd, 2009, 11:47 PM	#1
angrycrow ninjette.org member Name: thomas Location: Okinawa JP Join Date: Dec 2008 Motorcycle(s): 09 ninja 250 Posts: 42	keihin cr carb group buy Im looking for a couple (4 to be exact) people to go in on a group buy with me. the HARD RACING site sponsor from another 250 site said he would hook us up if we did a group buy. what im trying to buy is: im just trying to get a little extra UMPH from my ninjette. yes yes "maybe you should just buy a bigger bike" but why would i want to sell this awesome bike which i bought for fairly cheap , and turn around and spend $9000-11000 on a new bike? for 400 big ones or less you can get that extra little something some of you are craving for without moving up in cc's. so there it is , anyone up for a group buy??????

July 25th, 2009, 09:11 AM	#9
CC Cowboy ninjette.org certified postwhore Name: Whodat Location: Ware Is.,MA Join Date: Jan 2009 Motorcycle(s): I pass the wind! Posts: A lot. MOTM - Mar '13, Jun '14	If they don't double the horsepower I'm not interested. __________________________________________________ If everything seems under control; you're just not going fast enough!

July 25th, 2009, 09:40 PM	#17
ztrack157 The Sportisi Master Name: Matt Location: Chico Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.	Well as I have posted on the other sites about this. Unless you are racing you SHOULD NOT BUY THIS! Bogs down in lower RPMS when you open the throttle it opens and you get way to much fuel. Your idle needs to be at about 3500 to not have any problems with them. __________________________________________________ Sportisimoto USA is born.

July 26th, 2009, 10:59 AM	#19
ztrack157 The Sportisi Master Name: Matt Location: Chico Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.	No they didn't upgrade the carbs. I don't believe they were available when they made their maxton runs. Our carbs are sufficient but someone will always buy something like this even when it is not needed because they have money burning a hole in their pocket. This is great for on track usage but using it for a strictly street application does not make sense in anyway shape or form. __________________________________________________ Sportisimoto USA is born.

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July 24th, 2009, 01:03 AM	#2
Mista Bob Über n00b Name: Bob Location: Alberta, Canada Join Date: Dec 2008 Motorcycle(s): Triumph TT600, Honda NS50F, Kawasaki ZZR-250 (sold) Posts: 225	If I still had my 250 I'd probably be in for this, but alas I don't. Didn't know there was a carb alternative for the bike, awesome. I miss mah 250.

July 24th, 2009, 01:16 AM	#3
empire00 ninjette.org member Name: Sean Location: Southern IL Join Date: Feb 2009 Motorcycle(s): 2009 250r SE, 2015 FJ-09 Posts: 171	gonna need some dyno charts for me to consider this

July 24th, 2009, 03:22 AM	#4
Racer x ninjette.org certified postwhore Name: Eric Location: Iowa City Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot. Blog Entries: 54 MOTM - Sep '18, Feb '16	Do the CR carbs have a choke or cold start device ? Some racing carbs don't . I want to use them for the street.

July 25th, 2009, 02:03 AM	#7
NaughtyusMaximus ninjette.org member Name: Jordan Location: Calgary Join Date: May 2009 Motorcycle(s): 2009 ex250 Posts: 98	I might be interested depending on the price. Looks like I might have to get new carbs anyway...

July 25th, 2009, 10:50 AM	#11
NaughtyusMaximus ninjette.org member Name: Jordan Location: Calgary Join Date: May 2009 Motorcycle(s): 2009 ex250 Posts: 98	I'm out. Getting married next weekend, can't afford to spend that much extra right now

July 25th, 2009, 11:08 AM	#12
NorCal_Ninjette ninjette.org member Name: Jordan Location: Corte Madera Join Date: Jul 2009 Motorcycle(s): 2008 Ninjette 250R, 2006 Ninja 650R, 2001 Aprilia SR50 Posts: 24	Well going to fuel injection on this bike actually makes a net LOSS in HP in Europe...so I would assume changing carbs won't see much of a increase... where you will see increases if you REALLY want them would be in: porting and polishing the head balancing/blueprinting the motor racing camshafts shaved or thinner head gasget for increased compression but none of these are really worth doing on this bike... maybe the increased compression and maybe the camshafts...

July 25th, 2009, 07:44 PM	#16
NorCal_Ninjette ninjette.org member Name: Jordan Location: Corte Madera Join Date: Jul 2009 Motorcycle(s): 2008 Ninjette 250R, 2006 Ninja 650R, 2001 Aprilia SR50 Posts: 24	Well Factory Pro sells a 5+ degree advance woodruff key which takes care of the timing advancement...and while I assumed the loss in horsepower in Europe was from the Euro 3 emissions stuff, what it shows is that even with that taken off, FI would show us how the best fuel mix would be...so even with a good carb setup, the power gains from fuel/air would hit a ceiling because of the small motor... more power could only really come by moving the rev ceiling higher...I would guess...

July 26th, 2009, 10:22 AM	#18
Nickds7 ninjette.org guru Name: Nick Location: Sacramento, California. Join Date: Apr 2009 Motorcycle(s): 2009 Ninja 250r Posts: 379	yea no way fuel injection would provide less power, unless it was poorly made. I dont see where the increase would come from? we already can provide a good ammount of fuel with stock carbs.. This sounds like something that should be paired with other mods (turbo?). Even on the mag where they bump the power up to 35hp, i dont think they replaced carbs (could be wrong) Posted via Mobile Device