Your right about most go-carts being 4strokes,but going back to the 300 Thunderbolt 1960,you'll find that 25-1 has to much oil and will only...
jacktheroof,300 thunderbolt. Having a Merc 300 Thunderbolt myself,I tend to run on 35 to 1.It's in the safe zone,but with 50 to 1 you're using a...
