hello i have a jog r AC. i have fitted a 70cc polini sport cylinder , polini superspeed variator , polini race belt , 17.5mm carb , better reed block , 70cc exhaust and its top speed is only 85 km/h. any advice on making it faster as i expected more speed with all this kit on
have you checked its all fitted correctly and running properly, no leaks or other issues? are you jetted correctly to ensure the bike isnt running lean? and is the piston and barrel new, or are they second hand and badly damaged. is the 70cc pipe a decent pipe, thats very revvy, which is necessary for a 70cc? also, if youve fitted stupidly light rollers then youll lose top speed, but they have to be much lighter than your engine wants to warrant a loss of top speed. finally, if its all fitted and everythings as it should be, well then sadly thats as fast as it will go with that setup. if you really wish to make it faster, get it dyno'd to see where the bike isnt performing
if the revs are low as you gain speed the rollers are too heavy. if it revs its tits off yet wont move there too light... first thing to check wiht any lack of power/speed
