on my 86 250 big red if i never tought the jets in the carb but i sat for a will then i cleand the carb and i did not do any thing to the jets then put it back on an it ran ok than it did not run ok it still ran but it sounded like it was geting too much gas and i try to adjust the air fuel mixture screw and still ran the same do u think that the jetts could be the problem or some thing else

any one know how to fix this and fast i just got 5 inches of snow and want to tear it up

thanks for the help[img]i/expressions/face-icon-small-smile.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img]:

 

It could be some crud came loose and plugged something up in the carb or is not allowing your needle valve to close and maintain the proper float level (to high and flooding). It could be something wasn't tight enough and came loose.

 

do you want me to e-mail you all the specs and "how to's" on your carb? I will scan in the section in the book that tell you exactly how to adjust the float ect. Just PM me your e-mail. Also be sure and check your petcock filter if it sat for awhile.

 

Also did you ever get your compression checked out......this is all a combo thing.....
good carb + low compression = low power
Bad carb + good compression = low power

 

i doin the comprstion test in a few hours and do you think low compisstion whould make it sound like it is geting to much gas but it has alot of power but u just have to start off slow then you can give it some an it works it is just when it idles and then you go to take off is when this happens and i just fix the top end and it runs alot better than it did

thanks for the help

petcock filter is clean

 

it almost sounds like maybe its not gettin enough gas......take your carb and gastank off, drain the tank and see if its rusty inside.....then take a peice of copper wire uand snake it through your main jet....break free all the gunk around the orifice that surrounds the main jet also. i got the same snow you did, but unfortunaly my 3 wheelers in peices (puttin the wiseco piston, gettin the head ported, just for kicks)

 

This may help
http://www.rageperformance.com/carburetorparts.asp

 

i have good compretion 135lbs but it sill dos the same thing & it spits gas out of the carbwhen it idles & when it is runin and it fowlls the plug and it is black but dose not seem to be wet
can anyboady help
thanks