Question about Derbi Senda SM 125 4T Motorcycles

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50cc 1999 derbi senda

I have a 50cc 1999 derbi senda, i have rebuilt the engine, due to new crankseals needing putting in.
it did the trick does run better, but im still missing power , it just seems real flat any ideas on what it could be, i have been told it could be a problem with too much fuel or too much oil how would i check

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Hi
Decarbonise the exhaust system.

Regards
Phillip

Posted on Oct 16, 2009

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I have a Derbi gp1 50 cc Liquid cooled. After running for 15 minutes it starts to over heat. any suggestions?


Hi, Anonymous and the usual suspects are:
1. Low coolant level.
2. Restricted radiator air flow.
3. Faulty thermostat.
4. Coolant pump or fans inoperative.
5. Vent hose crimped.
6. Air in the coolant.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
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https://scootergrisen.dk/scooterhjemmeside/download/derbi_gp1_servicemanual.pdf
https://www.oemmotorparts.com/oem2.asp?M=Derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Apr 05, 2014 | 2005 Derbi Senda Racer

1 Answer

My derbi wont start at all, no matter what i try...


Hi, Tage and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. 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.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
Derbi Senda DRD PRO 50CC Hard to start
My 50cc Derbi senda sm xtreme cuts out when get it running why
Derbi service manuals page 1
https://www.oemmotorparts.com/oem2.asp?M=derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Mar 29, 2014 | 2011 Derbi Senda DRD Pro 50 SM

1 Answer

Wont start


Hi, Tage and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. 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.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Derbi Senda DRD PRO 50CC Hard to start
Derbi Senda 50cc got spark compression and fuel wont run
https://scootergrisen.dk/scooterhjemmeside/download/derbi_gp1_servicemanual.pdf
https://www.oemmotorparts.com/oem2.asp?M=Derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Mar 29, 2014 | 2011 Derbi Senda DRD Pro 50 SM

1 Answer

How to remove clutch on derbi senda x race 50cc


Hi, Anonymous sorry you can't find the first and best tool you ever bought for your Derbi despair, not for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day. DERBI SENDA Tutorial Engine Rebuild WATCH
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https://scootergrisen.dk/scooterhjemmeside/download/derbi_gp1_servicemanual.pdf
https://www.oemmotorparts.com/oem2.asp?M=Derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



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1 Answer

What ignition system is there on derbi senda xtreme 50cc from 2008


Hi, Fabian for more information about your question and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
Derbi GP1 50 cc Workshop Manual Page 33
https://www.oemmotorparts.com/oem2.asp?M=derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf
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Tips Tricks

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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1 Answer

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Hi, Anonymous sorry you can't find the first and best tool you ever bought for your Derbi despair, not for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Derbi Senda AGAIN 50cc 2000 carb problem
http://www.apriliaforum.com/forums/archive/index.php/t-253531.html
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https://www.oemmotorparts.com/oem2.asp?M=Derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

May 16, 2012 | Derbi Motorcycles

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Hi, Anonymous sorry you can't find the first and best tool you ever bought for your Derbi despair, not for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
http://www.carlsalter.com/pdfs/derbi%2050cc%20manual.pdf
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https://scootergrisen.dk/scooterhjemmeside/download/derbi_gp1_servicemanual.pdf
https://www.oemmotorparts.com/oem2.asp?M=Derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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1 Answer

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Hi, Taniagodfrey for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. If necessary, transport your bike to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your problem. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Derbi GP1 125 250 Workshop Manual
https://www.oemmotorparts.com/oem2.asp?M=Derbi
http://www.derbi.com/fr/images/stories/modelos/37/manual.pdf
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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Hi Jdkwf, all I could find was the Derbi website try contacting them to resolve you issue. Good luck and have nice day.
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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