Here is a fine starter motor for the Honda FourTrax TRX300 ATV model that was made from 1988 until 2000. These were manufactured with a 281cc engine. You can keep your Honda ATV running with a brand-new starter motor.
Shaft Splines: 10 Spline shaft Mounting Hole Dia. (the tab that is interior of the outer motor casing): 0.30" Mounting Hole Dia. (the tab that is flush with the outer motor casing): 0.26" Mounting Hole Center to Center Distance: 1.40" Mounting Cylinder Diameter (not incl. O-Ring): 1.175" Mounting Cylinder Diameter (including O-Ring): 1.228" Outer Casing Diameter: 1.675" Bolt Outer Diameter: 0.233"