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Hi all, I am new to this forum so please be gentle lol. I have a yamaha moto 4 yfm200. It starts great, but misses and back fires when hold a stead rpm. If you gun it it will also bog down and stall. I have stripped the carb out and cleaned everything, but still the same. I have also...

Hi all, I am new to this forum. I stay in Muirkirk in Scotland, originally from Motherwell. I have a yamaha moto 4 yfm 200, and i have spent that last 6 months if not more searching the internet for help, and there is a very limited amount of information over here for these quads, and they seem...