Viper Hard Starting

02 Viper has had problems starting after sitting for the summer.The first year had to dump fuel in the spark plug hole to get it running, dealer found no problems. This year the sled will not start at all, it has spark,fuel and nothing in the can (like a rats nest). Anyone had the same problem and a good fix?

I had to clean my carbs this fall in order to get my viper started. The pilot jets were all blocked and I found some other blockage as well. Another problem I have is vapor lock when I get up to the mountains and also when I get back to sea level. The quick fix for that is to take the gas cap off and she starts right up.

A squirt of starting fluid and removing the gas cap popped her right off . Don't really know whats going on, dealer says bad gas but hard for me to believe. Runs fine now. Thanks