Newbie To This Form . When Trolling For A Long Period Of Time And You Need To Move To Another Location Motor Starts Missing . But You Can Hold The Throtle Open For About A Minute Or So And Let Off The Throtle And It Will Run Good . Now When Running At Full Thortle It Start Missing . But Let Off The Throtle And Then Hold The Thortle Open For About A Min. Or So And Will Run Fine For A While . Then Right Back To Square One Again . I Have Had It In The Shop The Mech. Says Everthing Checks Out. Comp. Voltage Etc. Any Help Would Be Apper.