Hi! I am currently looking forward to making a kart with a friend during summer break so we could have some fun.We saved up money for a long time so I was thinking we could blow a lot of that on the engine.So the big question now is what engines should we get? We would like to have manual transmission if possible and ive looked into bike engines but couldnt find a bike under 1000€ with a working engine.Also the power im looking for is about 500cc because I am pretty heavy (78kg) and I want a bit of speed.