Need some serious help please ytm200

[luke1395]

okay i have 1983 ytm200 iv been riding it and its been running great then one day i ran out of gas and bout some fresh gas which i know was good and it crank up i went down the oad turned around and it back fired and would crank back up iv replaced the spark plug air filter cleaned the carb fresh gas new coil and checked the wires it has good spark and will crank if you spray starting fluid to it or a little gas it will run then backfire and cut off i have no idea whats wrong please i really need help with this i have to get it running before christmas for my son please!!!!!!!!thank you

[fabiodriven]

Not to sound like a jerk, but if you work on your grammar you will get more responses.

It sounds somewhat obvious that you are having a fuel problem. Does gas come out of the gas line if you remove it from the carb? It could be blocked in the tank. If it does come out, then you might be having a problem with the needle and seat in the carb, or the passage going to the needle and seat could be blocked. The main jet could be blocked as well.

[200XMichigan]

Not sure it the YTM200 has a fuel pump like other Yamaha's but my YT175 did something similar and it turned out to be the fuel pump. You can rebuild them despite what the service manual says, I believe they are a Mikuni DF or DP44, they were really common on older snowmobiles. But I guess you are from Georgia so not a lot of snowmobiles sitting around.

Check over the fuel system and you will find the problem, shouldn't be too hard to get running again. I'd add a nice clear inline filter while you are at it.

But I guess you are from Georgia so not a lot of snowmobiles

[fabiodriven]

I'm pretty sure the YTM200 is gravity fed.

[200XMichigan]

Well then it will be an even quicker fix. Just thought I would throw it out there, since a lot of Yamaha's had fuel pumps.