Let's try this again....
<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://www.google.com/maps?saddr=Oklahoma+City,+OK&daddr=40.6521273,-106.1760055+to:41.8991413,-106.2047547+to:42.2311962,-106.7735931+to:43.6145972,-109.8008724+to:44.4153166,-110.5768561+to:45.9343728,-112.4527278+to:46.1310069,-115.7597311+to:47.6487304,-120.723849+to:Oak+Harbor,+WA&hl=en&sll=42.313878,-106.626434&sspn=0.643829,1.429596&geocode=FSgxHQIddAQw-imB0vh-VIqthzGdOk_RdBKiMw%3BFV9NbAId--Gr-Slp2sqUM8hphzG8uduj8cRvcQ%3BFYVUfwIdrnGr-Smvq3XRVJhnhzGcgMLPY5kHIA%3BFZxlhAIdp8Oi-SmbuN9U2JJdhzF3Esp1fzFFsQ%3BFYWBmQIdWJJ0-Sm3JdnhHp5SUzHNAh2Q5qHs0g%3BFVS5pQIdKLto-Sm5H8K8P_pRUzG0ILnJdxaglw%3BFSTnvAIdiRtM-Smjl3f5HgdbUzHiBon4-QzVDA%3BFT7nvwIdjaUZ-SlvydHFhp6gVDGhsSFaigbswQ%3BFdoP1wIdd-bN-Cnx6xpJLVKaVDGLNI4TW_7vlw%3BFSTl4AId6Jyw-CnnmUyd4mGFVDEfC_9eMQapig&oq=Oak+Har&mra=dpe&mrsp=3&sz=10&via=1,2,3,4,5,6,7,8&t=m&ie=UTF8&ll=42.574321,-107.431183&spn=0.641159,1.429596&output=embed"></iframe><br /><small><a href="https://www.google.com/maps?saddr=Oklahoma+City,+OK&daddr=40.6521273,-106.1760055+to:41.8991413,-106.2047547+to:42.2311962,-106.7735931+to:43.6145972,-109.8008724+to:44.4153166,-110.5768561+to:45.9343728,-112.4527278+to:46.1310069,-115.7597311+to:47.6487304,-120.723849+to:Oak+Harbor,+WA&hl=en&sll=42.313878,-106.626434&sspn=0.643829,1.429596&geocode=FSgxHQIddAQw-imB0vh-VIqthzGdOk_RdBKiMw%3BFV9NbAId--Gr-Slp2sqUM8hphzG8uduj8cRvcQ%3BFYVUfwIdrnGr-Smvq3XRVJhnhzGcgMLPY5kHIA%3BFZxlhAIdp8Oi-SmbuN9U2JJdhzF3Esp1fzFFsQ%3BFYWBmQIdWJJ0-Sm3JdnhHp5SUzHNAh2Q5qHs0g%3BFVS5pQIdKLto-Sm5H8K8P_pRUzG0ILnJdxaglw%3BFSTnvAIdiRtM-Smjl3f5HgdbUzHiBon4-QzVDA%3BFT7nvwIdjaUZ-SlvydHFhp6gVDGhsSFaigbswQ%3BFdoP1wIdd-bN-Cnx6xpJLVKaVDGLNI4TW_7vlw%3BFSTl4AId6Jyw-CnnmUyd4mGFVDEfC_9eMQapig&oq=Oak+Har&mra=dpe&mrsp=3&sz=10&via=1,2,3,4,5,6,7,8&t=m&ie=UTF8&ll=42.574321,-107.431183&spn=0.641159,1.429596&source=embed" style="color:#0000FF;text-align:left">View Larger Map</a></small>
If you click the 'link' icon after making the map, just copy paste the first url that you have an option for (don't mess with the short url)
https://maps.google.com/maps?saddr=...LHen2QgrhzEY5o8YEuTSJg&oq=scot&t=h&mra=ls&z=9
The 'Paste' HTML to embed website one doesn't work correcty
<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?f=d&source=s_d&saddr=Fountain+Hills,+AZ&daddr=Payson,+AZ+to:Strawberry,+AZ+to:Camp+Verde,+AZ+to:Jerome,+AZ+to

rescott,+AZ+to:Wilhoit,+AZ+to:Wickenburg,+AZ+to:Scottsdale,+AZ&hl=en&geocode=FebGAAIdR_dW-SnRfKVhkJgrhzE3MXF4NO-svg%3BFVRSCgIdMFBd-Sl9Gj5q3RAshzEv2jpY_PjgjQ%3BFX4FDQIdnb5a-Slx2IafTkcshzFOH-ZYxF8FEA%3BFTRmDwIdEj1V-Sn9ImenXlUshzFJsxLatvinWA%3BFe85EgIdlEdR-Smb5-ltkA8thzGLZlUrT_Jj9g%3BFfgJDwId6t1L-SnrfHEA1CgthzHd_u5S5z2kCQ%3BFQNMDQIdqA9K-Sl7KM-ybNUshzGWFoMrTGVQUw%3BFWZWBgIdtN9H-Sm9Akw1k07TgDE6zuY-M6JOlg%3BFZoU_wEd3CRU-SmXLHen2QgrhzEY5o8YEuTSJg&aq=0&oq=scot&sll=33.674211,-111.858454&sspn=0.713142,1.352692&t=h&mra=ls&ie=UTF8&ll=34.127752,-112.080231&spn=1.269252,1.529204&output=embed"></iframe><br /><small><a href="https://maps.google.com/maps?f=d&source=embed&saddr=Fountain+Hills,+AZ&daddr=Payson,+AZ+to:Strawberry,+AZ+to:Camp+Verde,+AZ+to:Jerome,+AZ+to

rescott,+AZ+to:Wilhoit,+AZ+to:Wickenburg,+AZ+to:Scottsdale,+AZ&hl=en&geocode=FebGAAIdR_dW-SnRfKVhkJgrhzE3MXF4NO-svg%3BFVRSCgIdMFBd-Sl9Gj5q3RAshzEv2jpY_PjgjQ%3BFX4FDQIdnb5a-Slx2IafTkcshzFOH-ZYxF8FEA%3BFTRmDwIdEj1V-Sn9ImenXlUshzFJsxLatvinWA%3BFe85EgIdlEdR-Smb5-ltkA8thzGLZlUrT_Jj9g%3BFfgJDwId6t1L-SnrfHEA1CgthzHd_u5S5z2kCQ%3BFQNMDQIdqA9K-Sl7KM-ybNUshzGWFoMrTGVQUw%3BFWZWBgIdtN9H-Sm9Akw1k07TgDE6zuY-M6JOlg%3BFZoU_wEd3CRU-SmXLHen2QgrhzEY5o8YEuTSJg&aq=0&oq=scot&sll=33.674211,-111.858454&sspn=0.713142,1.352692&t=h&mra=ls&ie=UTF8&ll=34.127752,-112.080231&spn=1.269252,1.529204" style="color:#0000FF;text-align:left">View Larger Map</a></small>
The last option is to hit the preview button and then adjust the map doesn't work either
<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?f=d&source=s_d&saddr=Fountain+Hills,+AZ&daddr=Payson,+AZ+to:Strawberry,+AZ+to:Camp+Verde,+AZ+to:Jerome,+AZ+to

rescott,+AZ+to:Wilhoit,+AZ+to:Wickenburg,+AZ+to:Scottsdale,+AZ&hl=en&geocode=FebGAAIdR_dW-SnRfKVhkJgrhzE3MXF4NO-svg%3BFVRSCgIdMFBd-Sl9Gj5q3RAshzEv2jpY_PjgjQ%3BFX4FDQIdnb5a-Slx2IafTkcshzFOH-ZYxF8FEA%3BFTRmDwIdEj1V-Sn9ImenXlUshzFJsxLatvinWA%3BFe85EgIdlEdR-Smb5-ltkA8thzGLZlUrT_Jj9g%3BFfgJDwId6t1L-SnrfHEA1CgthzHd_u5S5z2kCQ%3BFQNMDQIdqA9K-Sl7KM-ybNUshzGWFoMrTGVQUw%3BFWZWBgIdtN9H-Sm9Akw1k07TgDE6zuY-M6JOlg%3BFZoU_wEd3CRU-SmXLHen2QgrhzEY5o8YEuTSJg&aq=0&oq=scot&sll=33.674211,-111.858454&sspn=0.713142,1.352692&t=h&mra=ls&ie=UTF8&ll=34.129995,-112.08252&spn=1.591443,2.334595&z=8&output=embed"></iframe><br /><small><a href="https://maps.google.com/maps?f=d&source=embed&saddr=Fountain+Hills,+AZ&daddr=Payson,+AZ+to:Strawberry,+AZ+to:Camp+Verde,+AZ+to:Jerome,+AZ+to

rescott,+AZ+to:Wilhoit,+AZ+to:Wickenburg,+AZ+to:Scottsdale,+AZ&hl=en&geocode=FebGAAIdR_dW-SnRfKVhkJgrhzE3MXF4NO-svg%3BFVRSCgIdMFBd-Sl9Gj5q3RAshzEv2jpY_PjgjQ%3BFX4FDQIdnb5a-Slx2IafTkcshzFOH-ZYxF8FEA%3BFTRmDwIdEj1V-Sn9ImenXlUshzFJsxLatvinWA%3BFe85EgIdlEdR-Smb5-ltkA8thzGLZlUrT_Jj9g%3BFfgJDwId6t1L-SnrfHEA1CgthzHd_u5S5z2kCQ%3BFQNMDQIdqA9K-Sl7KM-ybNUshzGWFoMrTGVQUw%3BFWZWBgIdtN9H-Sm9Akw1k07TgDE6zuY-M6JOlg%3BFZoU_wEd3CRU-SmXLHen2QgrhzEY5o8YEuTSJg&aq=0&oq=scot&sll=33.674211,-111.858454&sspn=0.713142,1.352692&t=h&mra=ls&ie=UTF8&ll=34.129995,-112.08252&spn=1.591443,2.334595&z=8" style="color:#0000FF;text-align:left">View Larger Map</a></small>