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wierd jetting problems!
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Posted by: 250exkid

i jetted my 250ex with a full sparks and have a K&N and stuff, it was about 30 degress's out so i jetted it amd i kept going up in sizes to richen it up and now its like 34 degress and i whent down like all the jets i whent up? its weird and it kinda cutts out in 1 and 2nd gear and revers like its getting to much gas so im gonna go to a 96 or a 92 and i was up to a 104 and man i just didnt want to burn it up and the plug just isnt darkening up like i want it so any help with the wierd jetting problems.

Posted by: m.h.s.c.#527

no no thats waaaaay too lean try like a 112

Posted by: m.h.s.c.#527

no no thats waaaaay too lean try like a 112 im runnin a 125

Posted by: ryanh250ex

I posted up a STICKIED thread with jetting recommendations in there, and it is still overlooked. Unbelievable.

Posted by: 250exkid

i did look and didnt help......... well im in SE wisconsin the jet kid saide from 92-98 and i was to 104 now for summer im gonna try 92..... im at 96 and it still cutz out in the lower gears when i putt around???? im guessing cuz its wayy to rich! so yea?????????

Posted by: BlasterEaten250

quote:
Originally posted by 250exkid
i did look and didnt help......... well im in SE wisconsin the jet kid saide from 92-98 and i was to 104 now for summer im gonna try 92..... im at 96 and it still cutz out in the lower gears when i putt around???? im guessing cuz its wayy to rich! so yea?????????

I live 2 hours away from you and the stock main jet for me is a 95. Even a 96 would be very low for a full pipe. Try going higher.

Posted by: 250exkid

but why does it cutt out like its getting to much gass in low gears when i putt around? when i give it all its got it goes like no other so?

Posted by: ryanh250ex

quote:
Originally posted by 250exkid
i did look and didnt help......... well im in SE wisconsin the jet kid saide from 92-98 and i was to 104 now for summer im gonna try 92..... im at 96 and it still cutz out in the lower gears when i putt around???? im guessing cuz its wayy to rich! so yea?????????

Find out the elevation for your area, and give me the approximate temperature for this time of year. I'll come up with a jetting recommendation.

EDIT: I looked it up myself. The following setup should put you close to where you need to be. DO NOT LISTEN TO THE JET KIT INSTRUCTIONS.

1000 ft elevation, 30 degrees F

108 main (i'm assuming you're running a lid)
e-clip on the 4th setting from the very top
38 pilot with the air screw 3 turns out

Posted by: 250exkid

below 3000 ft sea lvl temp around 35-43 but i wanna plan for wayyyyy hotter weather to. umm do i have to mess with the air screw?

Posted by: 250exkid

found the problem..... the spark plug gap got kinked! i fixed the sputtering.......

Posted by: 250exkid

i feel stupide for not noticing!

Posted by: ryanh250ex

did you end up rejetting to my specs? the jets you mentioned are too lean for stock, WAY lean considering your mods.

Posted by: 250exkid

are you sure A 108? that seems way to big? but what about when it starts to get warm out?

Posted by: ryanh250ex

quote:
Originally posted by 250exkid
are you sure A 108? that seems way to big? but what about when it starts to get warm out?

for the mods you have and 1000 ft elevation along with the cold, it wont be. Maybe 1 size too big. I know when i ran a 102 with full exhaust/ no lid and stock filter it was lean in very similiar conditions.

It will run richer as it warms up.

Worse comes to worse, if i'm off, just describe to me what the bike does and i can tell you whether to go up or down.

Posted by: 250exkid

well im running the 98 main with the fuel need all the way up... well as far as it will with is like the 3rd notch from the bottom for the e clip... it wont go down that far.... but with it like that im running it and i just checked the spark plug and its a dark golden brown and the metel is darkening black.

Posted by: 250exkid

P.S by my specs the jetting is right on.... white on a plug is lean golden brown is right on and black is rich..... correct me if im wrong

Posted by: ryanh250ex

quote:
Originally posted by 250exkid
well im running the 98 main with the fuel need all the way up... well as far as it will with is like the 3rd notch from the bottom for the e clip... it wont go down that far.... but with it like that im running it and i just checked the spark plug and its a dark golden brown and the metel is darkening black.

Dude you need to use spellcheck. It's not that hard to write a complete and coherent sentence with no spelling errors.

I NEVER use plug readings to tell me what my jetting is. There is so many detergents and additives in 21st century gasoline that it is VERY easy for you to misread a plug.

I jet all of my bikes on feel and sound alone.

Posted by: m.h.s.c.#527

[QUOTE]Originally posted by ryanh250ex
[B]Dude you need to use spellcheck. It's not that hard to write a complete and coherent sentence with no spelling errors.

SHUT UP

Posted by: ryanh250ex

quote:
Originally posted by m.h.s.c.#527
[QUOTE]Originally posted by ryanh250ex
[B]Dude you need to use spellcheck. It's not that hard to write a complete and coherent sentence with no spelling errors.

SHUT UP

No. I have a valid point.

Posted by: 250exkid

i use the best gas there is with the least additives and least added alchohual so yea..... and yes of course i do raise and lower my fuel needle so it runs top notch to so yea.

Posted by: shleprock

quote:
Originally posted by 250exkid
i did look and didnt help......... well im in SE wisconsin the jet kid saide from 92-98 and i was to 104 now for summer im gonna try 92..... im at 96 and it still cutz out in the lower gears when i putt around???? im guessing cuz its wayy to rich! so yea?????????

[SIZE=4]Needs more gas in those lower gears[/SIZE]

needs more gas in those lower gears

Posted by: 250exkid

no.... it was a kinked plug