Planet Minis

4603j · 06-26-2009, 01:07 PM

2007 ttr 50 wont stay running. put in a gytr jet kit and air filter.
now it will idle but only with the choke on but the engine races up.my 6 yr oldraces peewee harescrambles with this bike and when he slows down for corners it stalls whenhe lets off the gas

ONeinthesac · 06-26-2009, 01:40 PM

you probably have to adjust the idle screw and the air-fuel screw start the bike and turn the idle screw untill it will stay idle no matter how bad it does idle, then turn the air-fuel screw untill you get the highest idle and smoothest idle, then turn the idle screw back down till it idles normal. If that doesnt work then i would try going up or down with the pilot but it might just be your air-fuel screw is off it should be about 1 1/2 turns out from the seat when you get it to idle best if not mess with your pilot. If you dont know where you air-fuel screw is just look it up on google for your carb

monaghan · 06-26-2009, 02:05 PM

if you put the wrong size jets thats why

4603j · 06-26-2009, 03:50 PM

i tryed all diferent size jets 72.5 seems to work best .the oring was pinched on the air fuel screw and the threds were messed up so i just picked up a new air screw kit and they gave me a bigger pilot jet to try

monaghan · 06-26-2009, 04:49 PM

im not sure on what it could be, but i had a similar problem with a ttr50 and z50, i played with the airbox (which you dont have) but i also played with the air and idol scre and now it runs fine.
it took a while to get the screws in the right position though

BigMamaJama610 · 07-01-2009, 12:06 PM

Just adjust the idle and fuel/air screws till you get it right. I had this same problem with a ttr90 and we just re jetted it because it was too lean and adjusted the idle.

4603j · 07-05-2009, 08:58 AM

i have the bike idleing now but it runs real hot and the plug has a white or yellowish look to the electrode

ONeinthesac · 07-05-2009, 12:48 PM

then you are lean you need to richin up the main jet

06-26-2009, 01:07 PM	#1 (permalink)
4603j PM Newbie Join Date: Jun 2009 Posts: 3	ttr 50 wont idle 2007 ttr 50 wont stay running. put in a gytr jet kit and air filter. now it will idle but only with the choke on but the engine races up.my 6 yr oldraces peewee harescrambles with this bike and when he slows down for corners it stalls whenhe lets off the gas Last edited by 4603j; 06-26-2009 at 01:16 PM.

06-26-2009, 01:40 PM	#2 (permalink)
ONeinthesac 1st Gear Member Join Date: May 2009 Location: Newfield, NJ Posts: 169	Re: ttr 50 wont idle you probably have to adjust the idle screw and the air-fuel screw start the bike and turn the idle screw untill it will stay idle no matter how bad it does idle, then turn the air-fuel screw untill you get the highest idle and smoothest idle, then turn the idle screw back down till it idles normal. If that doesnt work then i would try going up or down with the pilot but it might just be your air-fuel screw is off it should be about 1 1/2 turns out from the seat when you get it to idle best if not mess with your pilot. If you dont know where you air-fuel screw is just look it up on google for your carb

06-26-2009, 02:05 PM	#3 (permalink)
monaghan 2nd Gear Member Join Date: Dec 2008 Location: Toronto, ON Posts: 967 My Mood:	Re: ttr 50 wont idle if you put the wrong size jets thats why

06-26-2009, 03:50 PM	#4 (permalink)
4603j PM Newbie Join Date: Jun 2009 Posts: 3	Re: ttr 50 wont idle i tryed all diferent size jets 72.5 seems to work best .the oring was pinched on the air fuel screw and the threds were messed up so i just picked up a new air screw kit and they gave me a bigger pilot jet to try

06-26-2009, 04:49 PM	#5 (permalink)
monaghan 2nd Gear Member Join Date: Dec 2008 Location: Toronto, ON Posts: 967 My Mood:	Re: ttr 50 wont idle im not sure on what it could be, but i had a similar problem with a ttr50 and z50, i played with the airbox (which you dont have) but i also played with the air and idol scre and now it runs fine. it took a while to get the screws in the right position though

07-01-2009, 12:06 PM	#6 (permalink)
BigMamaJama610 1st Gear Member Join Date: Jun 2009 Location: nunya business Posts: 116	Re: ttr 50 wont idle Just adjust the idle and fuel/air screws till you get it right. I had this same problem with a ttr90 and we just re jetted it because it was too lean and adjusted the idle.

07-05-2009, 08:58 AM	#7 (permalink)
4603j PM Newbie Join Date: Jun 2009 Posts: 3	Re: ttr 50 wont idle i have the bike idleing now but it runs real hot and the plug has a white or yellowish look to the electrode

07-05-2009, 12:48 PM	#8 (permalink)
ONeinthesac 1st Gear Member Join Date: May 2009 Location: Newfield, NJ Posts: 169	Re: ttr 50 wont idle then you are lean you need to richin up the main jet

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