Gilera dna, recently sluggish, any ideas??

[93tone]

I have a Gilera DNA (de-restricted) and recently it doesn't accelerate past 50-60kph , however it used to run up to 80kph on the flat, its never had any problems running in the past, so does anybody have any ideas on how to get it running like it used too?

[Kaph]

[cb1rocket]

could be time for a new belt, and gearing bits and if being a 50cc would benefit from a decoke

[93tone]

thanks for the replys

Its done 5400km, Ive done around 2000km on it.
So how often is a new belt needed?

[cb1rocket]

belts should last about 10k km, its mostly the gearing weights that sometime need replacing and the rear pully spring.

Best bet would be that the whole bike needs a service.

Has it been serviced? Most people think they just go on and on without maintenance. Bikes are like people, if you don't look after yourself, you get ill - same for a bike or anything.

Anyway, air filter changed? Exhaust decoked, spark plug changed?

[supermotocham...]

also the tappits

[Carvel]

[DrDonnyBrago]

How long do pistons/rings generally last on these things?

[Carvel]

[paddlesat16]

the powerband needs replacing go for a nice red one
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I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.