84 200x backfiring?

[speed20]

my trikes backfiring when i let off the gas....what can i do to prevent this from happening???? im only at 1/3 throttle....so im sure it will do it at higher rpm (im still breaking it in).....and is 3-4 tanks of gas good enough for a break in?

[hrc200x]

Do you have any exghaust leeks? Leeks expecially around where the header fits into the cyclinder really make it backfire.

[wanta250r]

timing ?

[speed20]

nope no leaks....and the timing is correct...or it wouldnt start on the first kick....if its off...its off by maybe 1/8 of an inch if that.. but it runs fine besides the backfireing

[wanta250r]

cam,valves

[J.D.]

you don't judge break-ins by 'tanks of gas' you ginger it for 20 hours, change the oil after the first 3-5 hours of ride time, again at 20, and you should be able to go balls-to-the-wall after that.

[speed20]

SSJ3Goku, 3-4 tankfulls does amount to about 20 hours of riding wouldnt you think???? beings how the 200x is pretty gas efficient.