TrailMaster TrailMaster Blazer4 200EX, Air Cooled 4-Stroke, Single Cylinder Go Kart TrailMaster Blazer4 200EX, Air Cooled 4-Stroke, Single Cylinder Go Kart The TrailMaster Blazer4 200EX is an upgrade from the Blazer4 150X, now with a bigger 169cc GY6 engine and equipped with EFI. With fuel injection, users don’t need to worry... $3,798.00 Choose Options Add to Wish list Compare