Gilera DNA 50cc (DERES) 2/ really Poor acceleration [HELP?!]

[nathnc123]

Hey all, Bought a Gilera DNA 50cc just over a week ago and when i drove it home, i thought oh, all Gilera's must have slow acceleration.. well, i just wanted to get it home! Anyway, after another drive on it i literally was scared to come to a roundabout or ANY junction, i knew if i had to stop i basically would be so embarrassed to pull away again..
When it gets going, it's amazing, hits to about 50mph max.
Up hills the bike just bogs right down, and if i go up a hill from a complete stop the bike won't hit over 11mph!
The bike sits at around 1kRPM just higher when first started up, then after a few miles it sits at around 3K but still will only start to move at 5K and then takes ages to go any higher



Long story short, i have put lighter rollers in (5.7g) they did have roughly 7g in when first bought. They have done a bit difference, and don't need to kick on the ground to move the bike, but it's still rather poor accelerating! Maybe i need even lighter rollers?

The belt is fine we believe.
We are going to check the Automatic choke to see if that's stuck on or not. (Will update with results later on)

What we have tried: Lighter rollers (5.7g)
Took of exhaust, and no blockage and that's perfectly fine.
Bought some RACE clutch springs (2000rpm) (red ones) and the bike didn't even want to move with them in! Link to them here: https://www.ebay.co.uk/itm/260888678892?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

Also changed the Main jet to Size 60. Doesn't really change any effect..

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I have just ordered 3.7g rollers and a new 1500RPM (black) sports Cobra clutch spring. Will these help?

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If anyone has a Gilera DNA 50 (Destricted) and acceleration is pretty good not boggish, what is your setup, and parts you have for it? So i could possibly copy and finally make this bike amazing!



Any help would be appreciated!

[Timmeh]

I have rebuilt a DNA50. And derestricted it.

Standard airbox and zorst, plate out of intake manifold, 65 jet, standard clutch + rollers

Didn't start rolling till you got to 4k, then was pretty sluggish until about 20 then got quicker from there.

Got to about 50 on a good day.
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GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[c_dug]

I would suggest going as close to standard as you can get it and starting again from there. I'm guessing it has some kind of sports exhaust on it too? How about the air filter?

The thing with 2 strokes (to a greater extent than 4 strokes) is that everything needs to be matched up properly for it to run well and be reliable. The end result if done properly will put a grin on your face. This result is unlikely to be achieved by swapping bits in and out on a whim.
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I am a bellend, I am a man of constant sorrow, I am a gummy bear, I am a rock.

[nathnc123]

Yeah sports exhaust, but one of the owners it's had, has taken the model logo part of the side of the exhaust, so i am not sure what make it is!
I have no idea what the standard parts are for it, i've looked around on google. I'm not to sure what the other owners have done to it, so it's all a guess putting new parts on and such

[nathnc123]

[Timmeh]

[nathnc123]

[Timmeh]

Cool

Well let us know how you get on.
____________________
GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[nathnc123]