Vern, the neighbor has one of those four-wheelers for children and his charger is damaged did not load the motorcycle it is a 24v charger I opened it, I saw that several tracks were broken, I fixed it and turned it on, everything fine on the way out marks me 28.3 volt I already measured all the capacitors and they are fine the varitor well, the transformer well, the optocoupler well It has like two transistors that probe and well I don't know what else to check being a minimoto, this voltage is fine or I check to see if it goes below the voltage I connected it to the motorcycle and the load but the charger warms up a little, I don't know if it's normal.

The tension is normal. What you should measure the charging current, which depends on the capacity of the battery. Heating is normal, as long as it can be tolerated by hand. If the heating is not supported by hand, it should be checked, because it might not be limiting the intensity of the charging current.