Question about 2005 Gilera Runner VX 125

1 Answer

Power problem It feels like it's not going into neutral when I release accelerator or changing up sometimes - is my gearbox knackered? Thanks, Gareth

Posted by on

  • thecomputera May 08, 2009

    I have the same problem - it seems as if the bike is stuck in first gear all the time however im also getting a lot of black smoke.  When I cover the air inlet on the carb it seems to stop smoking so much but it still wont go into neutral.  Is there any way of resolving this myself without going into a mechanic?


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Contributor
  • 47 Answers

There is no neutral on a CVT system but if it's not going thriugh it's auto transmissiom properly or smoothly it will be the six little roller weight worn and having flats on them, change them, it's cheap as chips. variator thay they sit in could be worn but most likely just the rollers, as the engine speed changes they move to change the gearing but if not round anymore they can't roll. metal cylinders with a plastic cover

Posted on May 10, 2009

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

My bike having no power under 3k rpm and sometimes while riding under 3k rpm suddenly the engine ceases for a mere fraction of second and again resumes. what causes this?

Hi, Radha my gut tells me it is a fuel issue start with # 13 the following applies to carbureted also fuel injected models and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
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, 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. Air/fuel mixture screw improperly adjusted.
10. Water or dirt in the fuel system, carburetor or filter.
11. Restricted, blocked or kinked fuel line.
12. Fuel tank empty.
13. The gas cap is not venting properly or fuel tank venting system blocked.
14. A failed fuel pump, pressure regulator and or fuel injectors.
15. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
16. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you need please click on the links below. Good luck and have a nice day.
Why is my motorcycle losing power when accelerating
Pulsar 180cc Acceleration Problem Team BHP
Bajaj Pulsar 150 CC DTS User Manual

May 09, 2016 | Bajaj Pulsar 180 Motorcycles

1 Answer

Clutch problems with the 94' rf900r

Yes it is time to change the clutch and gear shifter cams. Do it at authorised service center. Replacing clutch and gear shifter cams requires great deal of precision.

Oct 04, 2014 | Motorcycles

1 Answer

Grizzly 125 transmission stopped working after chain fell off

open gearbox,maybe the gearbox brokeafter the chain fell off

Jan 15, 2014 | Yamaha Motorcycles

1 Answer

I have a 1989 KX250 that sometimes hangs in gear. When started in neutral, I pull in the clutch and shift to first and it jumps and dies like the clutch was not pulled in. After rocking the bike with the...

If the clutch lever is properly adjusted, this is normally what happens if the gearbox oil is extremely dirty. Do and oil change then ride for 30 minutes. Then change the oil again to help flush out the dirt. If that doesn't help, then the clutch pressure plates are warped or the cork on the fiber friction plates is swollen from using synthetic lubricants in the gearbox. Check the plates and replace as needed.

Feb 07, 2010 | 2003 kawasaki KX 250

1 Answer

The engine loses power when 1st gear is engaged,

This sounds like a broken tooth on the main axle. This would account for the lump in every gear and a power loss due to the axle being bent also. I would change the axle, support bearings, and the gear the axle engages. Check the output shaft for bending also.

This could be bad bearings on the shafts but is is highly unlikely if the gearbox oil has been kept at proper levels. In any event, the gearbox will need to be opened up for inspection.

This image is generic and not specificly the TRX850

Aug 05, 2009 | 1997 Yamaha TRX 850

1 Answer

Honda V1100 Jumps out of gear on full throttle acceleration

More likely it is a slightly bent shift fork not fully engaging into second. The clutch and bearings are not suspect. Remove your foot from the shift lever then go full throttle in 2nd. Those new riding boots may be doing the magic unconsciously. Adjust the shift lever height if that is the problem.

Apr 30, 2009 | 1994 Honda VT 1100 C Shadow

1 Answer

Noise from engine

A gearbox problem is possible but not likely. You are probably hearing pre-ignition aka; engine knock and detonation. Hot carbon deposits on the piston and head are igniting the gas before the spark plug does. Use premium gas instead of regular. Change gearbox oil (10w40). Get a new spark plug one heat range colder than the stock plug for your bike. Chances are the problem will go away once you are using premium gas and have the new plug.

Please rate this solution. Thanks Rashid!

Apr 26, 2009 | 2006 Daelim NS 125 Dlx

1 Answer

Gearbox issues

You need new shift forks. Chances are the parts are all interchangable. The dealer can check the part numbers to see if they are the same. nWish I had it here in Texas, USA. It would only take anhour or so to fix it.

Please rate this answer. Thanks Amal!

Apr 02, 2009 | 2005 Bajaj Pulsar 180

1 Answer


G'day Brent,
email Gareth Morgan at  he rode a 650 GS from Europe to China and experienced running on some very low octane fuel  ( 87) in central Europe .
Cheers Derkomeister 

Jan 17, 2009 | 2001 BMW F 650 GS

Not finding what you are looking for?
2005 Gilera Runner VX 125 Logo

Related Topics:

159 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

4481 Answers


Level 3 Expert

61292 Answers

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

Answer questions

Manuals & User Guides