I have a srx 700 tripple, that i purchased second hand, i know nothing about machines, but heres my prob, it backfired on me twice on two seperate times, the first time i tried to start it it wanted to star and it turned over then it baqckfired and i couldnt get it going again, the second time i put new plugs in there and same thing only this time it was loud and i seen flames for the muffler, any one got any ideas,again i know nothing about machines i am a computer tech but if i get help i may be able to figure it out my self. i live in a remote community and no help, maybe a manual i can download would help me locate things i need to find.

thanks any suggestions would be helpfull.

Have you ever seen it run...like before you bought it? There are alot of things to check, but the fact you know nothing about sleds I wouldn't know how to even start.

Try here. Lots of valuable info on your sled.

This will sounds nuts but there is a service bullitin and a recall for AFFECTED sled only that may cause this. Try starting the sled with the headlights on HIGH beam. When you start the sled there is a headlight relay that Keeps the power from the lights till the sled reaches a steady 700 rpm in low beam. I had a similar problem with mine , and took a long time to track it down and with the help from a good dealer, we found the trouble simply by turning the headlights to high before starting. If this is the trouble YAMAHA has a new headlight wiring kit and a relay and will install it at no cost . If this is the trouble and you want the service bullitin # you can PM me as I still have the paperwork. goood luck.