Welcome Mark. That oil and filter will need changing before you do to much more mileage. There's good reason it says 500 miles or one month whichever comes first. The oil in it now is the thin running-in stuff. And having been stood around for so long the bike will obviously need a few summer miles putting on it in good company so why not get along to the forum's annual picnic and Jack Daniels tasting even in July. https://www.thetriumphforum.com/threads/grand-meet-up-2018-wales.12452/
Hi Mark and welcome. Same as my Bonnie but youv'e got a posh seat. Enjoy the forum, great people and great banter. All the best