need help derestricting a Piaggio NRG!! help !

[adamski-13]

i have a air cooled Piaggio nrg power MC3 2004 model. i have had so many problems getting it up to speed. when i brought it at 7000 miles i was maxing at 38mph on flat and i was told it was restricted. i took it to the garage and they sed it was fully derestricted including the vairator thing that u need to do. and the exhaust was. i ended up buying a giannelli exhaust. and it still hits 38mph on the flat but the accelereation is beter. i then put a 70 kit on and hit 52mph. it must go faster!! HELP!


lol there known for being fast yet it has no power??
currnetly i have taken the 70 kit off as the oil messed up and messed the 70 kit up so its running on a normal 50cc cylender and the ginnelli ehaust still hitting 38mph. but hitting 8000 revs still. sometimes over. really need help and would appreciate it !!

thanks!!

[the grim reaper]

Did you re-jet it when you changed the exhaust? That could be why the 70cc kit got damaged.

To be fair, 52mph aint bad for a 70cc scooter, you'll be limited by the gearing of the clutch anyway.

Cheers

Grim
____________________
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[adamski-13]

i dont think it got rejetted. but the 70 kit got ruined because of the oil. its still a mystery to me how the oil got in because i put green oil in and there was a very thin yellowy oil in there. which was sadly the cause . u think rejetting the carbs might help?

[chillpill]

green oil ?

it was two stroke right


the varaitor stops the ped from getting into its highest gear so yes top speed will be limited with it on , buy a impact driver/ air gun and its a ten minuite job

what 70 kit ? is it scored ? did you upjet ? how much by ? if you didnt then

step away from your spanners till you understand a 2 stroke engine

[adamski-13]

nope it was yellow. and yes it was 2 stroke oil definiatly. it was a malosi 70 kit and it was compeltly scored wen they took it off. i dont do the stuff my self the garage does. my dad told me they have been doing it for over 10 years which is why i went to them. i trust they have knowledge. just not enough in peds because they specialise in racing bikes. i dont no enough about peds to do it myself. altho all the things ive tryed with mine im startin to understnad :p lol.

im not sure about the upjetting but i will definatly ask them. what impact driver or air gun should i buy? any recommendations? what will the speed be after? given im doin 52 on a 70 kit.

i took the 70 kit off because my engine just competly cut out on me and wouldnt start.. the 70 kit was ruined

thanks !

[adamski-13]

see i know nothing about peds, i just realised ive asked u to give me a good make of a impact driver. which is infact not a moped part. its a tool -.- lol my fault when i took it in. the first thing they did was something wit the variator. i dont remember exactly but thye told me they pushed it right to the top?

[adamski-13]

still need help if anyone can give me another things i can try. thanks.

[chillpill]

lol i had a steep learnin cruve with my first engine too

first of all if the grage didnt upjet your carb when they fitted the carb then they owe you a new kit , its obvious to even someone with a small bit of engine knowledge that it would run lean and blow it , if you tell them this any mechanics normall response would be "well you obviously didnt run it in and ragged it" dont take this they owe you a new kit end of

fit some 5.0 gram rollers in the variator and upjet by 5% ( will be about 3 sizes on a tiny carb) www.beedspeed.com will sort you out with these parts and there dead easy to fit

[chillpill]

[adamski-13]

thanks mate =D will definatly try that. i took alot of care running it in lol. was very boring wen i new how much power it had aswell i went the first 200 miles with only half thorttle lol. what will a K&N air filter do to the speed? my mate has one but just seems to sound louder? lol

[adamski-13]

also, this week im boaring it up agen to 70cc. still think i should stick with the 5g rollers?

[chillpill]

yup and thats all high flow air filters do , they waste petrol and provide barely any bhp gains unless its a very highly tuned engine , did your mate upjet otherwise his engine will blow too

5g is only a rough ball park figure , with the 70 kit fitted it will be more like 4.5 youll need , your best bet is to buy a box of various roller weights of www.scooter-attack.com or https://www.adrenalin-pedstop.co.uk/ and just experiment till the best acceleration and topspeed is found , light rollers will cause overrevving and heavy rollers cause underreving and acceleration will be poor

it might also be worth getting a 17.5 carb as the 12mm stock one is pretty much a restriction in its self

[rezzin]

Take it you've done rollers and springs? To be honest the speed you mentioned is as much your going to get with a basic 70. Want more topend,get a gear up. Bigger carb wouldnt go a miss either.

[adamski-13]

the giannelli rollers that came with the exhaust were 4g and they slowed my bike down from its top speed and the acceleration was poor. my old rollers were better, i will find out what wiegth they are soon, ill ask the garage.. you think a bigger carb then ? how much should i be looking at, fitting and buyin the part. thanks.

[adamski-13]

whats that gear up btw? im wanting to learn more about my bike, not that i can do it myself lol. ermm what would i need to do this (parts wise) and the cost for a garage to do? thanks

[chillpill]

gear-up just a new set of gears designed for a higher top speed , it would be a waste of money on that set up though so forget about it , you can reach roughly 65mph on the standard gearing

yeah 4gs is probably too light for a pretty much stock setup

17.5 carb shouldnt cost much, there standard on gilera rnners and aprilia sr's past 05 probly about 15-20 quid , plus a tenner for a box of jets

rebore and a new piston for the malossi sport kit should cost around 50 quid and rollersa are about a tenner , clutch springs will cost about a fiver and will help acceleration loads and itl love the back wheel

dont have a clue how much a garage will charge to fix it , ive never been to one in my life , amateur mechanics for the win !

[adamski-13]

thanks mate.. will definantly have to try the carb.

[cheekythomas]

It will have a 17.5mm dellorto carb as std... only the odd pre-cat machines had a 12mm weber carb

[adamski-13]

mine is very odd lol.. well the speed is i willl ask the garage wat carb it has on.

[rezzin]

You wont reach 65mph on standard gearing. You will just about manage that with a small gear up. Deary me.

[u33db]

[chillpill]

[adamski-13]

my manual on my ped says its a 17.5mm carb how much is the malosi 1 btw?

[adamski-13]

lol didnt read ur last post chill.. wont buy 1 thanks ermmm so that carb thing wont get me no more power any other ways ? or were it might be lost on this bike?

[chillpill]

no malossi lol

standard jet would be 56 then , go for 59 mj and 5g rollers for jsut the pipe and try a 90 mj for the pipe and the 70 kit , take it out for a small ride then check plug if its black go down by a few sizes on the mj until the plugs nice and cholaty brown