1989 won't start

[bimplover]

I am getting a spark.does not seem that big a spark.bike started after being left out all winter with 1/4 tank fuel...no stabilizer.I rode bike a few times about 1 hour total.last time it needed a boost from car as it was a little cold out.rode home 5 miles.next morning no start....not even with boost?  Someone please help........I am in Toronto Canada

[Chris4564]

Sounds like battery to me I'd go for a full charge and if still won't fire check your plugs (I've never had much luck with boost packs if the battery is really low)

[psubrock]

My bike won't start on old gas even with stabil fuel in it. I'd bump start it (boosters can fry your reg/rec) fill it up and go on a long ride and see if it starts any better.