mates nrg problem

my friend has a nrg 02 mc3 he has a hebo race exhaust on it and sometimes it will bog down and spullter all the time and also only does 50 its been deristricted and personally i think it should be going faster than 50 and it is really slow on acceleration and i mean slow hes going to order some rollers and a polini speed control set and a hebo air filter do you think this will sort it and what rollers does he need please reply asap thanks

sort this problem, before you then chuck new parts at it, it will make it more complicated

ok what rollers shall he get its deristricted and has hebo exhaust his standard rollers are 7.5 he thinks he should get 3.5 is he correct

7.5 to 3.5 is a big drop :msn1:

would of thought 5.0-5.5 would be nearer!!

best to order a couple of sets really....to experiment!!

PMSL 3.5 Obv he doesnt no what hes on about !
You want 5.0 to 5.5g in there mate, what carb has it got on as maybe the auto choke is fucked, Dont waste the money putting a air filter on a 50 as will do sweet F A and will drink more fuel and 50 is about right as its only a 50cc after all is that clock speed ?

If auto choke disconnect the auto choke just unplug it and ride it see if makes any difference.