i have a '52 8n tractor. last week while cleaning my drive way it started to loose power so i stepped on the clutch and it regained power, so i nursed it back to the garage. Now it wont start. when i hit the starter it doesn't make a sound just sets there. the battery is fully charged , fresh gas and oil , has spark. could it be the started soilonoid or something to that affect . any help would be greatly appreciated. thanks.