Question about 2005 Gilera Nexus 500

Open Question

Gilera nexus, non starter

Gilera nexus 500, wont run cleanly, cuts out when throttle twisted, backfires when attempt to restart, now wont run at all, diagnostic system will not show problem, plug, hv lead, and throttle body replaced, still no start, wondering about fuel inj system, electrical systems,help

Posted by on

5 Suggested Answers

ga_drifter
  • 36 Answers

SOURCE: Do you need to remove

no absolutely not. you may have tight spaces to work in but do not remove the engine.

Posted on Jan 22, 2009

bunnydawg
  • 5158 Answers

SOURCE: Hi I am try to get a Dayco drive belt to replace

this page should help you

http://www.beedspeed.com/html-pages/DriveBeltChart.htm

Posted on Mar 07, 2009

  • 3567 Answers

SOURCE: My 1999 gilera runner 50cc cut out on me,now it won't start

Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it and clean it. With the gas valve turned off, does gas still get past the valve? If it does, then you need to replace the valve. Re-mount the bowl, ( not all bikes have a water trap bowl ). Always turn the gas off when not riding the bike. If the valve will not fully shut off the gas then a leak-down condition can occur and cause gas to get to the exhaust pipe.

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the
carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

Please rate this solution. Thanks!

Posted on Apr 28, 2009

  • 3 Answers

SOURCE: misfiring at speed on gilera 200 scooter

This sounds more like a lean fuel condition than ignition. If it was stored over the winter without the gas being drained or a fuel stabilizer being added, you'll likely have varnish build-up in the fuel system that is not allowing sufficient fuel flow.  If your engine is fuel injected, it's likely your injector is partially clogged.  If it's carbureted, your carb jets may be partially clogged or your carb float may be sticking and not allowing the needle valve to fully open.  Fill the gas tank with fresh gasoline, but leave enough room for a can of Sea Foam.  The Sea Foam may be able to break up the deposits and allow fuel to flow again.  However, there's no guarantee and the fuel system may have to be disassembled to be cleaned.

Posted on May 05, 2009

vinzen
  • 217 Answers

SOURCE: i have a gilera runner 50 sp and it wont start

Has it been laid up for months? Did you leave any gas in it untreated? You may need to boil out the gas tank . Try a carb cleaner first that you add to the gas.Check the plugs.Are they black/oily (too rich / worn ring), Tan ( correct ).they tell a lot about the condition of the engine. Good Luck

Posted on Sep 15, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Anyone know what the factory compression reading should be in the 2005 nexus 500? . Cheers


Hi, Ben your bike has a 10.5:1 piston compression ratio that would be around 170 PSI on a gauge for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Gilera, despair not, for a mere zero $0 you can download another one.
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.
http://www.healey6.com/Technical/Nominal%20compression%20pressure.pdf
Gilera Nexus 500
Gilera Nexus 500 Workshop Manual
https://www.oemmotorparts.com/oem3.asp?M=gilera&T=NEXUS%20%20500
Gilera NEXUS 300 Owner Manual

Apr 19, 2017 | 2005 Gilera Nexus 500

1 Answer

How often should I change the engine oil of my Gilera Nexus 250


Hi, Salifu for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Gilera, despair not, for a mere zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
https://www.louis.eu/rund-ums-motorrad/bike-datenbank/gilera-nexus-250-i-e/nexus-250/1793
couple of Gilera Nexus questions Thanks Twist Go Magazine
Gilera Nexus 250 e3 My 2006 EN
https://www.ajsutton.co.uk/spares/chooseModel.asp?make=gilera&uID=0
http://technik.doc.free.fr/Gilera/Gilera_Nexus_300_WorkShop_Manual.pdf

Jan 28, 2017 | 2007 Gilera Nexus 250

1 Answer

Engine management light on


Hi, Craig it should be noted that the reasons your check engine light constant or flashing, will or will not start, turns over or not conditions varies from the year, make, and model and you should always refer to your owners/service manual for proper diagnostic procedures. It should also be noted that any type of prior work or event IE: adding accessories, electrical curiosity/adventures, laying bike down/crashes, rainstorms/bike washings just before EFI light issues started can be significant hints/aids into tracking down the gremlin, also carry the appropriate jumper wire to access fault codes to reduce the risk of being stranded or towed, that being said the usual suspects are:
1. Faulty Fuel Pump, fuse or system relay switch.
2. Battery starting to fail due to old age/damage, perform a load test.
3. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Faulty switches/sensors: run/off, ignition, clutch lever, neutral, side stand, tip over, fuel, and or their connections.
5. Broken wire or worn insulation exposing wire to a ground situation especially inside wire harness at tight bends around fairing brackets, under dash panels, under fuel tanks over cylinder heads etc. Many harnesses are open on the ends that will allow water to enter and accumulate at v-bends.
6. Check for generated fault codes.
Dielectric grease and contact cleaner are your best friends for wire/cable/harness connectors, look for corroded, broken, or loose pins/sockets.
For more information about your issue please visit the websites below. Good luck and have a nice day.
couple of Gilera Nexus questions Thanks Twist Go Magazine
iQ4bike Precise diagnostics for universal motorbike motorcycle
Gilera Nexus 500 Workshop Manual
Genuine Gilera motorcycle parts spares Fowlers Parts
Gilera NEXUS 300 Owner Manual

Jan 03, 2017 | 2007 Gilera Nexus 250

1 Answer

Gilera nexus 500 clicking near battery and wont turn over


Check your starter. It sounds like this is the culprit.

Aug 30, 2014 | Gilera Nexus 500 Motorcycles

1 Answer

Fork seals on gilera nexus 500 have gone how do you repair them


HI HOW GOOD R Y ON TOOL S TO DO THEM BIT OF A PAIN SEE HOW MUCH BIKE SHOP WILL COST GOT MY DO FOR 70 ALLIN . BUT REMOVE FORKS

May 26, 2010 | 2005 Gilera Nexus 500

1 Answer

Which oil to use gilera nexus 500 2004


Standard bike oil use SAE10W/40 or SAE5W/30 Castrol, PenRay, Motul, etc Use SAE70W90 single grade. Good enough free advise?

May 03, 2010 | 2005 Gilera Nexus 500

1 Answer

The twist grip throttle on my 2002 vxr 200 has suddenly started sticking. Every thing else on the bike is perfect. How do I access the cable ( which panels come off ) and any ideas what it could be before...


Try looking for a kink in the line where the line meets the handle bars, should come apart by removing two screws from the underside. As this is a common kink point and can be seen with little effort.

Jan 05, 2010 | 2005 Gilera Nexus 500

1 Answer

The engine will not start for about 5 to 10 minutos, after a trip


this could be a bad starter solenoid  they are affected  by heat  when they start to fail  they usually act as if the battery is  going dead after a couple revolutions of the motor 

Feb 16, 2009 | 2005 Gilera Nexus 500

1 Answer

Do you need to remove the engine to do a valve adjustment on the Gilera Nexus 500.


no absolutely not. you may have tight spaces to work in but do not remove the engine.

Jan 21, 2009 | 2005 Gilera Nexus 500

Not finding what you are looking for?
2005 Gilera Nexus 500 Logo

Related Topics:

92 people viewed this question

Ask a Question

Usually answered in minutes!

Top Gilera Experts

Gino Cussen
Gino Cussen

Level 2 Expert

216 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

70374 Answers

Are you a Gilera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...