Hi all so i have built my cyclekart and instaled a gy6 125cc engine which is fitted to most cheap chineese mopeds, purely because i had the engine !, it had its complications instaling it, but it works, i managed a top speed of 36 mph on dirt tracks, and its quite quick of the mark it wont spin the wheels but not far off from doing so . I have not driven a kart with a gx200 engine but i think the gy6 engine is an equal match !!!?.
            The only issue i have is that running over rough ground the engine starts to splutter and smoke a bit due i think to the float shaking about causing the engine to run very rich , dose the honda engine have a float bowl and have the same problem ??.

   Hi Chris i have had a look at a few youtube videos but not seen this one i'll have to give it a watch..  thanks.

It was mine, accepted on the grounds that at 125cc, under 10Hp, and auto transmission it fell within the engine specs. If I remember correctly Nic also raised the question of eligibility before using a GY6 engine.

Well the use of a gy6 engine dose not really affect the ethos of a cyclekart, and seeing as it is acceptable to lightly tune the honda engine upto 10 hp which would make it faster than a gy6 engine, , its a perfect setup if your building a three wheeler. For me the ethos and spirit of cyclekarts is keeping the dimensions similar and the asthetics right.