Help with a DNA 50, anyone?

[ashh v]

Okay guys, i new to this forum so ill say hello

Right, i bought a Gilera Dna 50 a few week ago now and when i got it i realized it had a laser x pro exhaust and had been derestricted.
Well, the bike wasn't picking up speed at first (acceleration wise) so i was told to lift the needle a notch or so. This made it accelerate like no tomorrow, but we think that its just had that laser exhaust 'slapped' on, without any adjustments as once it accelerates on the needle, it fails to pull anymore and just toddles away. :/ Would you suggest me to rejet the main to a 75 or whatever? Oh and just a minor electrical fault if anyone could help, the main beam doesn't work (well it's extremely dim) but the 'pass' does, neither does the parking light hmmm

Any help with anything would be greatly appreciated!
Thanks
Ash

[Nope.]

With regards to the acceleration issue, you need to upjet 10-12% when you fit a sports exhaust. I doubt this has been done. Work out what jet you have at the moment and add 11% and try it out. You can get an entire jet box which includes a large range of jets and if you ever do any other mods it saves you the hassel and expense of getting a single jet.

When a sports exhaust is fitted it is also best to change the rollers and clutch springs. You need slightly lighter rollers and harder (tighter) clutch springs.

Do that and your bike should run right. If you want it too run REALLY well get it on a dyno and get them to set it up, but you should be able to do it at home.
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Former: Derbi GP1 50, Sachs XTC 125, Suzuki GSXR 400 GK73A, Kawasaki ZX7R, Suzuki DR250, Yamaha RD350
Current: 2011 Yamaha XT660Z Ténéré, 2003 Yamaha YZR-R1 5PW (In Build), 2009 Kawasaki ZZR1400

[ashh v]

Yeah thats what i was thinking, any idea on the weight to use, aswell as any info on the electrical side?. Thanks for your help though aswell

[connornrg]

68 Main jet will probably be suffice!
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Bikes (Not Bikes Really Just Shitty Mopeds)
**04 - Piaggio NRG MC3**02 - Yamaha Aerox 50/100**07 - Piaggio NRG Power - Shit.**

[ashh v]

Well guys, i was suggested to change it to a 75, and i did, it runs absolutley perfect now, picks up, pulls great, but as regards to other things, what would i rejet the bike to, if i changed the airbox to a conical air filter, eg k&n or malossi, the rollers to some light polini ones, and the clutch spring to a tighter one one. Also any help with the light issue guys?, its a real pain.

Thanks for all the help im recieving, really do appreciate it

[Nope.]