'86 Yamaha Enticer Fires then stalls...
My son has an '86 Yamaha Enticer that has just bit the dust (now that we have snow).
Has been a fabulous sled for two seasons and literally just died the other day and will no longer stay running. It will fire for a second or two, then cough, and die. Sometimes it lets out a little muffled backfire when it dies.
New plugs have been installed, gas is getting to the carb (plugs wet), have spark, compression is 120 mag and 100 PTO. I know that is bad because they're not balanced, but is it possible we've been just running this way for a few years now?
I have my doubts it's the carb because it's always run absolutely perfectly and the engine will still fire, but just not as consistently as it used to.
Your thoughts/help would be appreciated before I start digging in deeper.