SO MY 1993 DYNA HAS BEEN STORED FOR 2 YEARS NOW ! I BOUGHT A NEW BATTERY AND CHANGED ALL THE FLUIDS AND PLUGS , WONT START WITH OUT FULLOPEN THROTTLE OR CHOKE ON ,DO MAGNETTOS GO BAD FROM NON USE AND WHAT SHOULD I DO ABOUT THE BACK FIREING

 

You say you changed all the fluids... did you store it with gas? If yes, did you replace the gas before you tried starting it? If no, replace the existing gas with some new stuff... Blow out the fuel lines first and then reconnect. Drain the carbs of the old gas too.

Are the carb jets clogged? Dirt/dust or varnish? Break it down... fuel, air, spark. The magneto wouldn't go bad just sitting... spider web maybe? (you can never be completely sure) - check it over again, look a little closer.

Almost sounds like it's starving if it'll only run at full throttle/choked.

 

No Magnetos. You're describing a dirty carb (most likely a clogged slow jet and or idle circuit) Take the carb off, open it up, clean it all out. Fresh gas and my money says you will be in business.

 

thanks guys

 

Yes! rebuild the carb.

Just a tip. All caps on a post is shouting.

 

For your magneto question. No they don't go bad, but the magnet which = magneto looses it's strength and needs to be recharged/magnetized again.

 

I would suspect the carb like the others said.Old gas can damage the parts inside.It will build up a crusty bunch of crap on and in the jets,needle etc.Difficult to remove if real bad.
I would remove the carb (remove all the parts from carb) and submerge it and the jets in a gallon can of Berrymans carb cleaner.After the carb has soaked a couple days spray off with brake/parts cleaner and then blow off with compressed air.Get a gasket kit,needle and seat assy.and manual.
Make sure the jets are clean and not clogged.

 

After you get it running, it won't hurt to run a couple tanks with Marvel Mystery Oil. It has been around a long time & can help clean up what you don't get to.