i have 01 scrambler 50 while ago took it out ran good then one day it just ran like crap took carb out and cleaned it runs good but know its leaking fuel out air box so took air box off looks like its spitting fuel messed with settings seems be better . im not sure if there suppose to be a little bit of fuel spitting out any ideas anyone how do i tune it and know if theres any problems . i have a video if anone can help me get it on this site if that helps

 

Well not sure of your carb type, but sounds like the bowl is filling with fuel. Check to see if float is not sticking down, or the needle attached to the float is clean and closing properly. If it has a black rubber tip it may be swollen or the tip is rounded and not the point its supposed to have.
Could even be a crack in the float and its filling with fuel and not floating up.

Good luck

 

It was leaking out bottom of bowl I tightened the screw is it suppose to be open or closed. Any input thanks

 

How do I see if float is sticking thanks

 

Check compression before you go too far. Manual shows 115psi to be the minimum.If lower than that possibly why it's spitting fuel back into the air box. Install a carb kit,don't just try to clean a carb as the needle and seat takes the most wear. Probably why the carb is over flowing. If compression is ok,carb kits for the 50 are available for about 30 bucks.http://www.ebay.com/itm/Polaris-50-Scrambler-Carburetor-Carb-Repair-Rebuild-Kit-2001-2002-NEW-/121477380371?pt=Motors_ATV_Parts_Accessories&hash=item1c489db913&vxp=mtrOr you can buy a Chinese knock off complete carb for 17 bucks.http://www.ebay.com/itm/Carburetor-FITS-POLARIS-SCRAMBLER-50-2001-2002-Electric-Choke-Carb-/290674921559?pt=Motors_ATV_Parts_Accessories&hash=item43ad935057&vxp=mtr

 

The screw at bottom of bowl should be closed, its used to drain the bowl.

I agree with checking compression, if you thoroughly clean carb and buy a carb kit, and make sure the little insert where the needle goes in is there, you should be right.

My girlfriend let her 99 recon 250 sit for 7 yrs in garage, i thought for sure everything in carb was toast.
Cleaned carb, replaced 2 O- rings and all was good.