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MN250R
08-25-2005, 01:06 AM
Hello,
My 85 (Stock) ATC 250R carb seems to be running rich on the low end.(been like that since i bought it, even tried lowering and raising jets, plug chops, etc.)
i was thinking of rebuilding it , but i heard the oval slide carbs werent as good as a flat slide.
i have 38 AS carbs on my TRX 250R and LT500. Would i better off looking for a diff carb or rebuilding this one?

Thanks
hrc85250r
08-25-2005, 01:28 AM
38mm airstryker will be an awesome addition to yur 250r, totally worth it, and if you order it from sudco or somewhere like that they can hook you up with the right jetting and whatnot...
OldSchoolin86
08-25-2005, 08:43 AM
Changing jets won't help your low end. A jet change is needed when your mid to top is rich or lean. Once you dial in your top end then you can adjust the needle for mid and your mixure screw for your low end.
TeamGeek6
08-25-2005, 12:40 PM
Changing the slow jet helped the low end on my '86 PJ. It had serious breakup going from idle to main until I tweaked the slow jet, now it rips. Since the 85 is basically the same design, it should apply to the 85.

But - the float level was also a problem that had to be dealt with at the same time. :wondering

Sounds like good advice to dump the PJ and get a better carb. YES - SUDCO!
OldSchoolin86
08-25-2005, 12:44 PM
A new carb would help performance only if you learn how to tune first. Personaly, I'd pull out a screw driver and turn the mixure screw before I pulled out my wallet.
max
08-25-2005, 05:14 PM
I Concur With Oldschool. Alls You Need Is An Adjustment To Yours. If You Get A New Carb You Could Spend Hrs Dialing It In. Try Taking Your Air Box Lid Off. Fixed My Low End Troubles On My 86r.
TeamGeek6
08-25-2005, 06:10 PM
A new carb would help performance only if you learn how to tune first. Personaly, I'd pull out a screw driver and turn the mixure screw before I pulled out my wallet.


Here here! That needs repeating. :beer Its not about parts, its about tuning.
If you cannot tune the idle mixture with a screwdriver, then there are bigger fish to fry.
sandrooster
08-25-2005, 06:47 PM
Get a rebuild kit. $16.

Should solve most of the carb issues.
MN250R
08-26-2005, 12:07 AM
Thanks for all the fast replies.
I think im gonna go with a carb rebuild kit, cant really shell out the money right now for a AS , even if i get it at service honda