Hello all, I have a yamaha slider 50cc, variator washer removed, race exhaust, 6g roller bearings, 95 jet.. When i first start the bike and let it warm up, it revs freely and pulls round to 55mph no probs, but as soon as i back off it seams to start struggling and wont rev freely for some reason.. i took the plug out and its brown ish and dry, maybe running lean??? Has anyone had this problem before? its like the carb is restricted but i`m no expert so cant pin point it. Thanks for any help
Thanks, yeah I think its bogging out maybe i need a bigger main jet, the plug looks fine, and it runs fine when fairly cold but it may be worth a try?? Would that make sence??? Thanks
