HELP!!! I dont know whats wrong

[Rebel300]

Yesterday I took off my plastics so i could clean the frame and sonme other lil stuff. I came home from school today and now it wont start. All it does is crank, and a lil sputter and then it back fires. I dont know whats wrong. Can anyone help me???

[phatswinn]

change the spark plug and see if that works, i cant think of anything else that could have happened, also pump the throttle 3-4 times before trying to start it

[300EX_HMF]

check to see if your gas is on cause that happens to me sometimes and i get frustrated and then i cant figure stuff out.

Was it this cold last time you started it? Could be a little lean and not wanting to fire up.

check the usuall stuff like the suggestions above and make sure your battery is up to snuff and let her rip.

[Rebel300]

Thanks for all your suggestions. It turned out when I sent it back to Honda for the 100hr tuneup the idiots didnt put a new sparkplug in. So my plug was fouled. Havig a CR125 I new exactly what to do lol. All i did was just sand it and put it back in and fired within 2 seconds. Now that ive found the problem il go back to honda and ***** to them about how they cant change sparkplugs and ask them for a free one. lol.