Can you put a bigger motor in a Yamaha xt 350 frame?

Yes, you can put a bigger motor in a Yamaha XT 350 frame, but it requires careful consideration of several factors. You need to ensure that the new motor fits within the frame dimensions and that the weight distribution does not adversely affect handling. Additionally, modifications to the mounting points, exhaust system, and possibly the wiring harness may be necessary. Keep in mind that such changes could affect the bike's performance, legality, and insurance.