125 to 200

hello my ktm exc speedometer is only reading my speed up to 7mph. i have checked for damaged cables i found nothing. thanks in advance

Hello, I was wondering if any of you might be able to help me. I have swapped my 2013 Duke 125 engine to a 200cc duke engine. Everything is connected and fits, the engine starts and runs. However, it will not idle (it just stalls) and with anything over 20% throttle it will stall too, it runs...