I bought a 1987 Polaris Trail Boss a couple of years ago and it ran like new. Over a little bit of time the thing stopped running. It sat there for a year or so and I have finally got around to fixing it. I have just fixed the problem where too much gas overflows out the carb and got it running for a bit. Now a new problem has come up. When I try to start the thing it takes at least 20-30 pulls to even get it to fire (I have a bad battery.) This gets to be a little tiring. I don't want to spend the money on a battery, but I will if its a must I could buy it. The thing also misfires sometimes, does it need a new spark plug? Any help would be appreciated, thanks in advanced.

 

I'd do a compression check before I did anything else! This can tell you a lot right there. If the compression is below 120 psi could be why it takes so long to start. If compression is at least this amount,it could be carb related,needing a new carb kit if you haven't at least replaced the needle and seat. Plus leaking crank seals even with a good top end compression reading can cause problems.

 

Thanks for the help. I'll try changing the needle and seat and check the compression. Hopefully it starts up faster!