sm510r explosion from exaust

hi all,on 2007,sm510r (with carburetor) ,I changed slip on from standard in leovince and it start to make explosion,is it a lot fuel or little,and which jet to change,pilot or main?

what do you mean by explosion? Like a backfire? Maybe some flame out the back? If so you are probly too lean or have an exhaust leak..... Need more info

no,nothing like that,this is when in drive let off trottle it start to
continuous low shooting(how to explain that sound),I do not know how to explain,but know that have something with jetting,to much or to little gas.bigger or smaller jett?

Why dont you pull the carb apart and see what jets are in there and make sure all the restrictive crap is off. From the factory they come with a throttle stop, AP cap etc.. And they are obviously jetted wrong. I'm assuming you got the bike used like I got mine, so find out what size jets are in there and then report back and we can help you from there.

this is:main jet 180,pilot jet 50,throttle stop is off,everything was ok until I changed slip on pipe ,people I just need somebody to tell me which jets to put on?slip on is full opened and if this mean something sea level is from 0-100 meter ?

some decel popping on these bikes is normal, mine runs great with 180 main, 45 pilot, 65 leak jet, ap cap removed, AP is o-ringed, and fuel screw about 1.5-2 turns out, needle in 5th position, pay attention to the throttle response and how it is runnign not just the decel popping.

on mine needle is on 3 level and don't know what leak jet is,tell me is it better to make AP o-ringed ,one more thing,I can't find mixture screw on carburetor,is it possible that I do not have one.tell me what exaust you have on yours?

you defiantely have a mixture screw it is underneath the carb, very hard to get to while the carb is still on the bike, thats why most people buy aftermarket screws. Sounds like your needle is too lean, move it to the 5th position from the top. The leak jet is in the bowl of the carb, you remove the bowl and then you will see the leak jet. The leak jet and the 0-ring around your AP will help with throttle response on the bottom end, the needle with help (hopefully fix your explosion problem) from 1/4 throttle to 3/4 throttle

there is some good pics on this thread, it's for a kawasaki, but we have the same carb on our bikes
http://www.thumpertalk.com/forum/showthread.php?t=706330

thank's man,I will tray this what you sad,let you know results.