I have an 87 Fa50, with about 900 miles on it, before i touched it , it hadnt been run in a while. first i put some gas in it then tried to start, after figuring out that the rear brake lever had to held down to engage the kickstart i tried to start, no start, then i saw that the ignition coil was not properly attached, that black and yellow wire wasnt hooked up right, so i ran an extension to the black and yellow wire that comes off the cdi box. Then i got spark i cleaned the carb after that , tried to start and it rumbled a bit and died with the aid of brake cleaner, so then i got some starting fluid and sprayed that in and tried to start, at first it started real nice and the whell started spinningand moments later it died out, i was pulling the throttle a little after inspecting the carb i noticed that there was fuel in the bowl and that the jet leading from the bowl was IMMACULATE. so clean u cud eat of it not once but twice. this was due to the many times i cleaned it. it runs if i put starting fluid in , the spark is big bright and blue, i deduced that this is not a fuel problem up until the reed valve( after that im not sure) ive also deduced that the spark is perfect so is the electrical system. i can even honk the horn this is not the reason of failure. i just took the muffler off could this be a problem? Is it dangerous to run without a muffler?, how would i go about cleaning the muffler out? are there any replacements for the muffler if the muffler is not the prob what is? Im running with out an air filter, when i put it on it gets better but i can only go about 3 miles an hour, maybe 2.99 miles any hour.
Please Help im about to ride this over a cliff and into the river.