I have a problem with my Rebel, i always have to use the choke or it will just stop.. doesen`t matter if it`s cold or hot.. i just innstaled a powerfilter on it, but it didn`t help! what is wrong? i tryed to sett the carburetor(as i sayed, im from norway..) to maximum, so that it would get more gas, but this didn`t work.. please help me!