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Gilera dna - when first turningin it on the acceleration is very fast, but when things start to warm up acceleration is a lot slower and I mean a lot!! Any ideas what I could do to fix this?

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  • 430 Answers

Could be an intake leak. Can you rev it to keep it going once the revs go down? If you can keep it going does spraying a carb cleaner or water at the intake ( not the carburator) change the way the motor runs?

Posted on Oct 25, 2012

  • ryan clayson Oct 27, 2012

    I'm thinking its now the head gasket because the engine whistles as it starts up, its coolant tank runs out more quickly than usual, white smoke comes from the exhaust ( moisture leeaking from the coolant tank) and the overheating and loss of power are both symptoms of a blown head gasket if I'm correct

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Posted on Jan 02, 2017

cape cod bob
  • 292 Answers

SOURCE: starting problems with gilera dna 50cc scooter

no, if it starts on the kicker petrol is not an issue, could be battery though

Posted on Apr 11, 2009

ollie reece
  • 1167 Answers

SOURCE: i have a gilera dna 125 4st it takes lots of turns

the spark plug possibly get back to me if thats ok

Posted on Sep 16, 2009

Testimonial: "its ok"

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How can I get my Gilera DNA 50 2002 lights to work..? Full beam and rear breaks are all I have, no speedo etc..? Please help this novice ??


Hi, Darryn sorry you can't find the first and best tool you ever bought for your Gilera despair not for a mere $0 you can download another one. For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
Gilera Dna 50 head tail light problems
my gilera dna 50 instrument panel goes crazy when turn on my indicators
http://www.carlsalter.com/gilera-service-manuals.asp

Jan 15, 2016 | Gilera Motorcycles

1 Answer

Gilera dna 50 full battrie working every think as it shud battrie getting charged when going around now what the problem is when i turn normal lights on if turns clocks off and starts flating battr


Hello Alvin!

Had to do some research on your machine and hoped there is a "Users Group" where you could go for help. No joy. You are stuck with me...??

If your scooter has spent a lot of time outdoors, I'd be suspicious of corrosion in the electrical connections. I own an Italian machine myself ('87 Alfa) and ground connections have been troublesome.

Start with you battery connections, making sure they are clean and sound. In fact, remove both and check carefully inside the cable sheaths, where the wires can be damaged. Clean the terminals well before putting the cables back on.

Then start looking closely on the frame for ground attachments. Disconnect any you find and clean the frame attachment point and the wire connector. A light sanding should clean things up.

If things are still not right, start pulling each connector you can find and inspect for corrosion. Be careful, since old plastic can snap, so try to figure out how they come apart before overpowering them. Usually a "release" pin of some sort.

You have no doubt noticed by now I'm giving very general advice, since I've obviously never seen your Gilera. Frankly, many electrical gremlins in older machines are caused by corrosion and I suspect you may find this is your problem.

All the best.

Dec 11, 2014 | 2005 Gilera DNA 50

1 Answer

MY 2002 GILERA DNA 125CC 4STROKE MAKING POPPING NOISES FROM EXHAUST AND CUTS OUT AFTER 10MINS OF RIDING IT


Hi, Darren and the usual suspects are:
1. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Air/fuel mixture screw improperly adjusted.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Lean angle switch is faulty or needs adjustment.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
https://www.o2w.co.uk/tagforum/viewtopic.php?t=9147
http://www.100-biker.com/forums/showthread.php?t=24824
2001 Gilera DNA 125 Scooter PDF Factory Service Work Shop Manual Download... $22
Gilera DNA 125 180 125 2001 Parts
https://en.wikipedia.org/wiki/Gilera_DNA

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1 Answer

Gilera dna - I think my head gasket has blown, I'm


Pressure test the engine to prove it.

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Wanted carb for gilera.180/200 runner. dna 180. 4stroke engine


Have you tried bob wright motorcycles they are based in westernsuper-mare but they are a gilera stockist new and used parts and offer mail order check them out on the web.

Jan 13, 2010 | 2005 Gilera Runner VX 125

1 Answer

I have a gilera dna 125 4st it takes lots of turns


the spark plug possibly get back to me if thats ok

Sep 16, 2009 | 2005 Gilera Runner VX 125

1 Answer

Starting problems with gilera dna 50cc scooter


no, if it starts on the kicker petrol is not an issue, could be battery though

Apr 11, 2009 | 1992 Gilera Saturno Bialbero

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