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View Full Version : Posible mod on a 1985 250sx


bebeav
10-25-2002, 02:47 PM
Can someone tell me the performance mod i can do on my sx, exept k&n filter. :cool:

ALP
Beav
83BigRED
10-25-2002, 02:51 PM
do you have any mods on the Big Red?
bebeav
10-25-2002, 02:56 PM
no, not yet. maybe next spring ill start working on it. this winter ill work on my 250sx.

if i know some mod for the 200 ill tell you those mod then.

ALP
Beav
Technogeek
10-25-2002, 04:05 PM
have a look at this thread!:thumbsup: http://www.3wheeler.org/vb/showthread.php?s=&threadid=2561
bebeav
10-25-2002, 04:12 PM
thx, but i already seen this post. too bad :rolleyes:

ALP
Beav
ATCRYDER
10-25-2002, 07:08 PM
Air Filter---K&N

Exhaust: anything but Cobra unles syou get the utility series or a SParky on it.

Jet that carb: go bigger--but get a pipe & a filter FIRST.

Rob
bebeav
10-25-2002, 08:28 PM
ok, maybe its a stupid question but, how do i jet my carb???

ALP
Beav:confused:
bebeav
04-06-2003, 08:51 PM
bump!
i really need to know how to re jet my carb now
250sx
04-06-2003, 10:15 PM
have you done a search for jetting? there's a chart posted in one of them of what you change to affect a certain rpm range. what have you done to the trike?
bebeav
04-07-2003, 06:07 AM
my 250sx tranny is dead so i did my mod on my 200es. K&N Filter and Corbra Exhaust.

i forgot that damn search button. sorry

ALP
Beav
250sx
04-07-2003, 11:09 AM
with those mods you should, at most, only go up a size or two on the main jet. ifyou take the bowl drain off your carb it's usually the one you see right there sticking down. don't run it too hard until you jet up. you may be running lean right now.
83BigRED
04-12-2003, 10:30 PM
hows the big red now, compared to stock?
bebeav
04-13-2003, 10:29 AM
louder than before lolll. help acceleration and keep speed when i climb some hill
drgnjake
04-13-2003, 09:49 PM
are there any other mods available to the 250sx? I want mine to look and run as much like an r as possible.
83BigRED
04-15-2003, 08:51 PM
This may be a dumb question but Do think the mods were worth it?
$"|"I|\|G|2@?
04-16-2003, 11:43 AM
sell the sx and buy an r ..because no amount of modding will ever make a 4 stroke hit like a 2 stroke..plain and simple
ATCnut
04-16-2003, 06:51 PM
A much as I hate too, I have to agree with stinger on this one. The sx is the best tractor trike made, but it will never perform with a X or R.