Gilera runner 180 with 172 pro street kit no acceleration

I have a 2002 gilera runner 180 with a pro street 2 kit

brand new 180 belt
Malossi clutch red springs white contra
25mm carb
Mhr inlet
Brand new 12.5g rollers
Malossi cdi
Pm59

the bike has no acceleration at all almost struggles then at about 20mph it unexpectedly kicks in nearly throwing you off

cant think what else to try played about with clutchs and contra springs

 

Put the complete std clutch back in it !

 

Thanks marsh, i currently have to complete standard clutch in it and still the same?

 

Also its standard 125 variator with metal metal on it but i have just got a malossi variator

 

Have you re-jetted the carb to the suit the PM pipe?
And why has it got the 172 kit on it if it's a 180??

 

Also standard airbox or pod filter?

 

Im running a 102 main jet and 50 pilot jet doesnt seem to bog or splutter at all, i fitted the 172 kit as i believe there better for when tuning bikes due to ports and that? I could be wrong but its running alot better as a 172 than it did as a 180

 

The drive belts are different for 125 , 180cc so use the right one !

 

I brought the belt as a 180 belt from the shop is there a way to tell by part number or anything? It does kinda sound like belt slip or clutch slip as it doesnt struggle to rev just to pull off

 

Check on "Fowlers of Bristol" web site for part numbers.