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How can I slow down a piaggio nrg 50
Posted: Thu Apr 10, 2014 7:55 pm
by col68
My son is about to turn 16 and I have his brothers piaggio nrg power 50cc lc sitting in the shed ready to go for him . But it is abit fast for him to start with. Revving to 11000 and topping out at 50-55 mph on a good day. It has got a standard carb up jetted to a 65 main an arrow exhaust 4.5 gram and 5 gram rollers. so would like to slow it down if possible to a 35-40 mph . Do I want to fit larger rollers or a bigger main jet . 7.5 rollers kill it . Any help would be good thanks col
Re: How can I slow down a piaggio nrg 50
Posted: Thu Apr 10, 2014 8:05 pm
by Clubbook2
Hide the keys every morning!!!!
Re: How can I slow down a piaggio nrg 50
Posted: Thu Apr 10, 2014 8:21 pm
by col68
Clubbook2 wrote:Hide the keys every morning!!!!
do you know the bike ? have you got a new name ??? col
Re: How can I slow down a piaggio nrg 50
Posted: Thu Apr 10, 2014 8:44 pm
by Clubbook2
Yes and yes!!!! Change the exhuast for a quieter one to start with.
Re: How can I slow down a piaggio nrg 50
Posted: Thu Apr 10, 2014 10:33 pm
by mac
At a guess you'd need either 5.3 or 6.4 rollers depending on the year,
To restrict it you can tack a washer in the exhaust down pipe, start with a small hole and try out for the speed, open it up a little if it's to slow.
It would have been upjetted when the exhaust was fitted, I think the standard would have been about 58 - 60
Re: How can I slow down a piaggio nrg 50
Posted: Thu Apr 10, 2014 10:49 pm
by e type
Re: How can I slow down a piaggio nrg 50
Posted: Fri Apr 11, 2014 5:56 am
by col68
mac wrote:At a guess you'd need either 5.3 or 6.4 rollers depending on the year,
To restrict it you can tack a washer in the exhaust down pipe, start with a small hole and try out for the speed, open it up a little if it's to slow.
It would have been upjetted when the exhaust was fitted, I think the standard would have been about 58 - 60
Bike is an 07 . yes it did have a 60 main jet in with standard pipe , the arrow exhaust came with 5.5 rollers . I have got a new set of stage 6 rollers from 5.5 , 6 ,6.5 ,7 gram to try thanks col
