What RPM with full choke?

CmichRider · September 15th, 2011, 02:32 AM

Mine gets up to 7k, seemed a little bit much to me when I had it on full choke today. It took some work to get started actually..wasn't even sure if I had fuel in the bike it was so rough! But I haven't started her in a week and the temps have been below 40 at night here, so that could have something to do with it.

But yeah, full choke=7k RPM?

Skippii · September 15th, 2011, 05:10 AM

Doesn't matter how high it *can* get. Just use as much choke as you need. You don't have to run choke all or nothing. When the bike warms up to 4K rpm, turn the choke to half.
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kimboEX250 · September 15th, 2011, 05:39 AM

Quote:

Originally Posted by Skippii

Doesn't matter how high it *can* get. Just use as much choke as you need. You don't have to run choke all or nothing. When the bike warms up to 4K rpm, turn the choke to half.
Posted via Mobile Device

yep, he's right

sounds like you're flooding it, instead of opening the choke all the way and trying to start it, have the choke fully closed with your hand on it and turn the bike over while gradually increasing the choke, if it fires up at 1/4,1/2... choke leave it, now go ride it. if you have the habbit of full choke, start it, and let it warm up while you check the mail,smoke a cig, put your gear on, etc, idling at 5000k, or in your case 7000k!! you are dumping a bunch of fuel into a cold engine with no oil pressure, which will cause carbon bulid up on the plugs, so i would change the plugs and top her off with fresh gas

JLinde1339 · September 15th, 2011, 10:14 AM

Yeah, I used to (before I started tweaking the carbs) put it on about half way, which would put the idle between 2k-3k rpms on my baby. I try not to idle it too high when the engine is cold. By the second stop sign, I can usually turn it off, and see if she'll not stall with no choke.
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Apocolypze01 · September 28th, 2011, 06:29 AM

Idle on mine is 1500k. Full choke is about 3k. I only choke it for about 15 seconds or so. To warm it up, start it with choke. Choke off after about 15 seconds, or you will just be wasting petrol

Then just hold it at about 4k rpm for about 30 seconds. Then it will be fine and idle happily.

crazyjayp · September 28th, 2011, 12:28 PM

hrmm. makes me think something is up with mine then.

Full choke gets it to idling around 4k-4.5k. But if i try to decrease it, down to say 2-3k, it dies out.

Once its warm, it runs fine with no choke. Also riding with choke on it bogs alot. I have to give significant throttle even with the choke on to get it rolling...

disclaimer: i know nothing about engines. (i love to learn though)

massacremasses · September 28th, 2011, 12:33 PM

I dont use the choke unless I have to?

I had to a little today.... I dont think it idled at 7k though...

Apocolypze01 · September 29th, 2011, 06:41 AM

What is your idle once the bike is warm, with the choke off? You can adjust the idle via a screw on the left of the bike just below the fuel tap if i remember correctly.

Twist left - idle speed down
Tiwst right - idle speed up.

Tweak it when the engines warmed up. Aim for about 1.5 - 2k rpm. If it cant idle steadily at these rpm, something is wrong.

n4mwd · September 30th, 2011, 02:34 PM

I was told not to let the choke run any faster than 3K. Its always worked good at that speed. I only use the choke to get rid of a little flat spot during acceleration when its cold. As soon as I start moving, I cut the choke completely off.

choneofakind · October 1st, 2011, 08:33 AM

Quote:

Originally Posted by Apocolypze01

What is your idle once the bike is warm, with the choke off? You can adjust the idle via a screw on the left of the bike just below the fuel tap if i remember correctly.

Twist left - idle speed down
Tiwst right - idle speed up.

Tweak it when the engines warmed up. Aim for about 1.5 - 2k rpm. If it cant idle steadily at these rpm, something is wrong.

I would aim for 1500 rpm. Idle speed in the owners manual is 1200-1400 rpm iirc, but 1500 is easier to gauge since there's a line there on the tach

September 15th, 2011, 02:32 AM	#1
CmichRider ninjette.org member Name: Jacob Location: Michigan Join Date: Mar 2011 Motorcycle(s): 2000 Ninja 250 Posts: 227	What RPM with full choke? Mine gets up to 7k, seemed a little bit much to me when I had it on full choke today. It took some work to get started actually..wasn't even sure if I had fuel in the bike it was so rough! But I haven't started her in a week and the temps have been below 40 at night here, so that could have something to do with it. But yeah, full choke=7k RPM?

September 28th, 2011, 12:33 PM	#7
massacremasses Avid Kitteh Poster Name: Justin Location: Norcal Join Date: Sep 2011 Motorcycle(s): 2006 Yamaha TTR 50 SUCK IT Posts: A lot.	I dont use the choke unless I have to? I had to a little today.... I dont think it idled at 7k though... __________________________________________________ I powdercoat stuff Help me pay for my addiction I say funny stuff. http://twitter.com/JustinPWNSyou sometimes... I write like a 12 year old too, http://justinpwnsyou.wordpress.com/

September 30th, 2011, 02:34 PM	#9
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	I was told not to let the choke run any faster than 3K. Its always worked good at that speed. I only use the choke to get rid of a little flat spot during acceleration when its cold. As soon as I start moving, I cut the choke completely off. __________________________________________________ My Ninja Blog Proud member of ABATE.My NYC Road Rage documentary - CENSORED!

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September 15th, 2011, 05:10 AM	#2
Skippii Milkshake Drinker Name: Skippii Location: Richmond, Va Join Date: Aug 2011 Motorcycle(s): 2007 Orange DRZ400-S, 2005 Ninja 250 & Custom Thundercunt Dirt Chopper Posts: A lot.	Doesn't matter how high it can get. Just use as much choke as you need. You don't have to run choke all or nothing. When the bike warms up to 4K rpm, turn the choke to half. Posted via Mobile Device

September 15th, 2011, 10:14 AM	#4
JLinde1339 Fighterer in Training Name: Joshua Location: Schenectady, NY Join Date: Jul 2011 Motorcycle(s): 2001 Ninja 250R Posts: 316	Yeah, I used to (before I started tweaking the carbs) put it on about half way, which would put the idle between 2k-3k rpms on my baby. I try not to idle it too high when the engine is cold. By the second stop sign, I can usually turn it off, and see if she'll not stall with no choke. Posted via Mobile Device

September 28th, 2011, 06:29 AM	#5
Apocolypze01 CBR? This is ninjaaaaaa!! Name: Michael Location: Victoria, Australia Join Date: Sep 2011 Motorcycle(s): '97 ZZR250 Posts: 40	Idle on mine is 1500k. Full choke is about 3k. I only choke it for about 15 seconds or so. To warm it up, start it with choke. Choke off after about 15 seconds, or you will just be wasting petrol Then just hold it at about 4k rpm for about 30 seconds. Then it will be fine and idle happily.

September 28th, 2011, 12:28 PM	#6
crazyjayp ninjette.org member Name: Jay Location: Champaign, IL Join Date: Sep 2011 Motorcycle(s): 06 Ninja ex250 Posts: 16	hrmm. makes me think something is up with mine then. Full choke gets it to idling around 4k-4.5k. But if i try to decrease it, down to say 2-3k, it dies out. Once its warm, it runs fine with no choke. Also riding with choke on it bogs alot. I have to give significant throttle even with the choke on to get it rolling... disclaimer: i know nothing about engines. (i love to learn though)

September 29th, 2011, 06:41 AM	#8
Apocolypze01 CBR? This is ninjaaaaaa!! Name: Michael Location: Victoria, Australia Join Date: Sep 2011 Motorcycle(s): '97 ZZR250 Posts: 40	What is your idle once the bike is warm, with the choke off? You can adjust the idle via a screw on the left of the bike just below the fuel tap if i remember correctly. Twist left - idle speed down Tiwst right - idle speed up. Tweak it when the engines warmed up. Aim for about 1.5 - 2k rpm. If it cant idle steadily at these rpm, something is wrong.