Re: FD-19 Johnson hard starting Home › Forum › Ask A Member › FD-19 Johnson hard starting › Re: FD-19 Johnson hard starting nj-boatbuilder57Replies: 286Topics: 41 May 29, 2018 at 7:10 pm #76999 The tool is awesome! It let’s you set "when" (which is obviously what "timing" is all about), while letting you completely ignore "gap". I’ve never had a vintage engine run so well….the timing tool is well worth it.