Tillotson T4 Karts and Races thoughts?

[Abitabilo (Mark Abitabilo)]

That SA 250 looks nice. How much hp do they have and where do they race at

[KartingIsLife (James McMahon)]

More info here. I thought it had stopped production, but maybe not?

Existing 4 stroke engines

Here is a list of the current existing 4 strokes engines (not comprehensive) that were imported in the US : Biland : Engine type : 2 cylinder 4 stroke Power : 34 hp @ 9,500rpm Torque : N/A Displacement : 124.8cc x 2 Personnal note : Not used anymore in the EU, you might see one or two during track days. Pretty fast, pretty unreliable [image] Swiss Auto 250 (Carburator) : Engine : Single cylinder 4 stroke with balance shaft Power : 35.5 HP at 9’000 rpm Torque : 28Nm Displacement : 249.6 …

[Vash_Stampede]

After 30-40 hours is it replace the short block? As it’s a sealed engine. And or replace the seals to the head and adjust the valves?