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    300/440/550 Js550 hard starting

    Battery and starter connections seem good replaced starter with seadoo 580 still same problem. Pulled engine today and blocked off intake and exhaust and blew in pulse line air coming from front seal faster than I can put in hopeing this my problem when repaired I'll update
  2. G

    300/440/550 Js550 hard starting

    Battery is a couple months old taken out of my 650sx. Don't think I have air in fuel lines because even after riding for awhile then shut off hot still hard to start. Maybe starter just isn't spinning fast enough?
  3. G

    300/440/550 Js550 hard starting

    I have a js550 I recently purchased, I rebuilt carb and installed fuel primer. Runs great in water but hard to start. Sometimes have to pick pump out of water to get running. Could this just be carbarator oUT of adjustment?
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