Try to get a longer trailer if you can. You may have problems getting the bike forward enough to get enough tongue weight so the trailer will track straight.
Motorcycle trailers generally have the axle set a bit farther back so you can get away with a shorter one. However on a utility trailer you will need to position the bike further forward or stack at least a couple of bags of cement or playground sand or more as far forward as you can to compensate. Hope that makes sense.
Watch this video.
Too much tongue weight could overload the rear tires of the towing vehicle, pushing the rear end of the vehicle around. When this happens...
www.weigh-safe.com
If you use bags of sand or cement etc to increase the tongue weight, be sure to protect them from the weather and damage. Heavy garbage bags etc. If they spill out and you loose your tongue weight the improperly loaded trailer might cause you to wreck. Or at the least to have a religious experience. It goes badly very fast without proper tongue weight.
If you’re only carrying one bike being a little higher than 15% tongue weight shouldn't be much of an issue as long as you don’t get really carried away or exceed the rating of the hitch on the vehicle . That sort of stuff. Being below 10% will be an issue though.