Hi guys brand new here I bought an old sled I have rode it a couple times ran well. My last trip out however after going a few miles I killled the sled with the kill switch. I pulled and it fired and die instantly. I pulled a few more times and nothing I waited a few and it fired up one pull. This happened three times the third it did not start again. I have good spark and if I pour a little in the heads it fires instantly but dies as soon as it is gone. I pulled the pump checked the lines I think it’s a fuel pump but want some verification. Thanks in advance.