Hey, I've recently purchased a Lexmoto FMS 125 and I was wondering what items I would need to tune up my ped. I'm looking for a better air kit, big bore kit etc.. If you guys could point me in the right direction with part numbers etc.. that would be a massive help. Oh I have a GY6 engine on my ped. Thanks in advance.
Nothing... What's the point. Its a 4 stroke anything you do to it would cost a lot and do very little to your top speed. Best you can do is get better acceleration at the expence of top speed or a slightly higher top speed at the expense of acceleration. By slightly higher top speed were talking 3-4 mph at most.
Your fms is classed as a scooter not a ped! 50cc are mopeds. You could fit a 150cc barrel straight on, a 180cc if you bore the cases out a little, the 4 valve head /cam is not cheap and need a big carb. I do beleive there are long stroke cranks available but £££££s. Then you need a drive belt that last's more than 5 miles!! Even with all this I don't think it will be that quick top speed.
