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Chanman420q
03-03-2003, 11:10 PM
ok before i was running stock jetting, and my problem was it wouldnt start/idle unless the choke was on 10%, and it would bog when i hit 3rd gear. Now i was on stock jetting so i went out tonight and got a 158mj and a 40pj, and my problem is worste now it wont idle at any part of the choke on or off and u can see the exaust now... its white. I think maybe the fuel air mixture should be adjustade, but im not gunna go in and mess more chit up til i hear from someone who knows what there doin
jchevy
03-03-2003, 11:13 PM
Sounds like your jetting was rich to beegin with and then you richened it up more. How clean is your air filter?
Sporttrax400ex
03-03-2003, 11:14 PM
I am thinking lean it out more. air mixture jet clean your hole carb and check everything on it and make sure nothing is sticking then put it bak on and see wat she does....make sure theere isnt nuttn in ur air box hoes goin 2 the carb and ur filters clean thats bout all i can think of...clean it and lean it out and adjust the air mixture valve and if that dont work umm.. tell me and i will ask my neighbor he is a mechanic.. but that should work:devil
Chanman420q
03-04-2003, 12:20 AM
Originally posted by jchevy
Sounds like your jetting was rich to beegin with and then you richened it up more. How clean is your air filter?

stock jetting in 20 degree weather...
jchevy
03-04-2003, 12:22 AM
Stock jetting should be fine, but it sounds like you were rich with it and then you richened it up more.

Is your airfilter plugged up?
roostu
03-04-2003, 12:30 AM
If it ran better with the choke on it was a lean condition.

~Roost-U
jchevy
03-04-2003, 12:40 AM
It would run without the choke right? You just needed it to get it started?

What color is the plug?
Chanman420q
03-04-2003, 12:55 AM
it wouldnt run without the choke so i richened it up... now it wont run at all... i tried leaning it out by taking the air lid off but that didnt do any good
Chanman420q
03-04-2003, 12:56 AM
it will start, but u gotta give it gas or it dies.... wont idle... choke does no good
JOEX
03-04-2003, 05:11 AM
Have you changed the plug recently?
If you did and still have problems....Go back to square one....
Put all jets and settings to stock
pilot 38...40 should bes fine
needle in the middle
148 main
fuel screw 2 1/2 turns out
lid on
clean the filter AND the carb innerds
Then see what happens.
If you didn't make any changes to the intake or exhaust systems you shouldn't need to change the jets.

Joe
Chanman420q
03-04-2003, 06:17 PM
no i havent changed the plug, because i dont wanna take that plastic off... ive gotta plug now, also i rejetted because i think he cold weather is gunna last a while
RiPPiNiTuP7
03-04-2003, 06:25 PM
Originally posted by Chanman420q
no i havent changed the plug, because i dont wanna take that plastic off... ive gotta plug now, also i rejetted because i think he cold weather is gunna last a while

Umm..you don't have to remove the plastic to change the plug :huh
DESDAK4
03-04-2003, 06:26 PM
You can change that plug without taking the platic off pretty easy really. I just use the tool that came with the quad and it works out real good. I have even gotten to where I don't have to take the front plastic off to do the valves. You just want to be careful putting the plug back in so you don't knock it out of gap any.


Jay
USAF
AMMO
ZRider400
03-04-2003, 06:31 PM
Originally posted by Chanman420q
no i havent changed the plug, because i dont wanna take that plastic off... ive gotta plug now, also i rejetted because i think he cold weather is gunna last a while

:huh
OutlawEX
03-04-2003, 06:35 PM
Originally posted by ZRider400
:huh :ermm:
03-04-2003, 06:38 PM
Originally posted by Chanman420q
no i havent changed the plug, because i dont wanna take that plastic off... ive gotta plug now, also i rejetted because i think he cold weather is gunna last a while

bahahahaha....good job derek
Chanman420q
03-04-2003, 07:18 PM
i dont have the right tool so i gotta get that plastic under the gas tank off to get to it
JOEX
03-04-2003, 07:36 PM
I use a Craftsman 18mm deep well 3/8 drive socket with the short extention. The only thing I take off is the spark plug boot.
:confused: :ermm:

Joe
WrAtHs
03-05-2003, 12:25 AM
Originally posted by JOEX
I use a Craftsman 18mm deep well 3/8 drive socket with the short extention. The only thing I take off is the spark plug boot.
:confused: :ermm:

Joe

How much does that 18mm deep well cost?
Chanman420q
03-05-2003, 12:28 AM
ok so what should i do about jetting for 20 deg weather
JOEX
03-05-2003, 09:59 PM
Originally posted by WrAtHs
How much does that 18mm deep well cost?
It's just a regular socket. I got mine with a tool kit I bought about 15 years ago. I don't know what individual sockets cost, i'd guess about $3-$4.

Joe
JOEX
03-05-2003, 10:09 PM
Originally posted by Chanman420q
ok so what should i do about jetting for 20 deg weather
I can't remember which way you need to go. Search around this section for bit, this has been discussed several times recently.

Joe
jchevy
03-05-2003, 10:16 PM
Stock jetting should work fine in 20 degree weather once you get it warmed up. The cold will make it harder to start then normal. But if you do have to rejet you will want to make it richer b/c the cold air is more dense.

Try 42 pilot, needle in the stock position, and a 150 main.
A lot of guys run a 42, i run a 40.

This bigger pilot will help starting it and a 150 main is only a little bit bigger than stock jetting.