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BKo
10-09-2003, 12:02 PM
I Have 440 Ex just bored what should i do its a 2000 and it wont run whith out it half choked do i need to rejet it if i do can i do it my self thanks

BKo
BKo
10-09-2003, 01:44 PM
It Will run with the choke off if i keep on the gas but as soon as i let off it dies. i only have about a 30 mins. on it Please Help
Silverfox@C&DRacing
10-09-2003, 02:07 PM
could be your pilot jet is either pluged or to small of one if you are running a stock carb you need a 42 or 45 pilot.
BKo
10-09-2003, 02:18 PM
Thanks i am Running stock can i do that my self i dont have much experts with Quads but i do with Cars
MNTNMAN
10-09-2003, 02:55 PM
There are very good directions in the tech section.
10-09-2003, 03:19 PM
u definantly need a rejet...and its very easy...get the carb hanging and unscrew the black plate...make sure u dont lose any peices inside...unscrew ur piolet and put in the new 1...:D
BKo
10-09-2003, 06:23 PM
Thanks alot you really helped i will be rejetimg soon what type of gas should i run? Thanks for the answers. if you can tell me any other tips to do thanks
10-09-2003, 07:30 PM
if your piston compression is over 11:1 u may want to run mix of race gas and 93 octane or straight race gas...11:1 and lower you can run 93 octane...which is premium unleaded
BKo
10-10-2003, 06:36 PM
Will it hurt my Quad to Run wit the choke on for awile tell i get the jet kit
BKo
10-10-2003, 07:00 PM
I need help Please
K_Fulk
10-10-2003, 07:00 PM
It would foul your plug if it was jetted right, but your oviously lean and it needs the extra gas to run.
BKo
10-11-2003, 09:20 AM
Can i get Some help please
Woodsrider
10-11-2003, 09:30 AM
I wouldnt run it anymore with out rejeting. You're way too lean. Running lean= running hot. If anything on a new motor you need to be just a hair rich. just be patient and go get the jets.;)
BKo
10-11-2003, 10:10 AM
But When choked it runs fine ?????????? Not to lean
Woodsrider
10-11-2003, 10:30 AM
Originally posted by BKo
But When choked it runs fine ?????????? Not to lean

choking it is cutting off air, making it run richer......
ATVer14
10-11-2003, 10:48 AM
Yup, if it runs better with the choke, then you are running too lean normally. By restricting the air supply with the choke, you are decreasing the amount of air being mixed with the same amount of fuel going into the engine, making it run richer. So jet richer on your main and go from there.
BKo
10-12-2003, 02:04 PM
Thanks for the Help