Question about 2003 Aprilia Pegaso 650 i.e.

1 Answer

Back firing on my 2001 pegaso 650ie

Can not get the bike started

Posted by Anonymous on

1 Answer

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  • Aprilia Master
  • 40,026 Answers

Hi Anonymous, 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 over use of enrichner.
5. Vacuum hose to fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, loose, corroded or broken battery terminal connections especially the "NEGATIVE" cable inside the harness at both ends.
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 faulty ignition coil, ignition module or sensors (MAP, CMP CKP and/or BAS).
11. Sticky or damaged valve or pushrod wrong length.
12. Primary cam sprocket spline sheared or missing spacer.
13. Security alarm needs a reset.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
https://www.tradebit.com/filesharing.php/search/0/2001+pegaso+650ie

Posted on Oct 20, 2015

3 Suggested Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: how can I reset the service light on my aprilia pegaso strada.

DIAGNOSIS
This menu interfaces with the systems fitted to the
motorcycle to carry out diagnosis. To enable the menu, a
password is needed that is available only to aprilia service
centres.
• Insert the service code
It is a 5 digit code, for Pegaso the code is: 25973
If code is wrong, appears the message:
• Incorrect code
The instrument panel goes back to main menu; if not, the
menu appears:
• EXIT
• ECU ACTUATIONS
• ECU PARAMETERS
• ECU ERRORS
• DASHBOARD ERRORS
• DELETE ERRORS
• SERVICE RESET
• DISCONNECT
• UPDATE
• UPDATE KEYS
• KM / MILES
Once the operation is over, the instrument panel goes back
to main menu.

Posted on Jul 18, 2009

astrawoid
  • 294 Answers

SOURCE: Back firing through back through the carbs on a

I had a 4 stroke 500CC engine doing the same thing. It was sneezing fuel backwards out of the carburetor, and backfiring. I checked the valve clearances at Top Dead Center and found that I had no clearance on the intake valves. So, when compression would try to build, instead of staying inside the cylinder where it belonged, it shot backwards out of the intake (because the intake valves were ever so slightly open). So, check valve clearances and valve timing. Mine had to be set at .006 mm intake, and .010 mm exhaust. Runs perfectly now.

Posted on Dec 08, 2010

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1 Answer

Back firing


Hi Anonymous, and the usual suspects are:
1. Loose, corroded, or broken battery cable ends inside the cable harness especially the "NEGATIVE" cable at both ends.
2. A severely drained battery.
3. Faulty main circuit breaker and or connections.
4. Faulty ignition coil and or connections.
5. Faulty spark plug, oil or gas fouled, wrong heat range or service type, wrong gap, loose in the cylinder head, broken electrode or insulator.
6. Faulty spark plug cables, leaking or broken, internal damage.
7. Faulty ignition module, switch, CKP, MAP, CMP, sensor and or any connector in the ignition circuit could have corroded, loose, or broken pins/sockets
8. Burnt exhaust valve or air leak in the exhaust system.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
DOWNLOAD 2001 Aprilia Pegaso 650

Apr 22, 2014 | 2001 Aprilia Pegaso 650 i.e.

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Back firing aprilia pegaso 650ie


Hi Anonymous, for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix/test or parts inquiry. If necessary transport your vehicle 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 issue. For more information about your issue please visit the website below. Good luck and have a nice day. https://www.tradebit.com/filesharing.php/search/0/2001+pegaso+650ie

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2 Answers

How can I reset the service light on my aprilia pegaso strada.


DIAGNOSIS
This menu interfaces with the systems fitted to the
motorcycle to carry out diagnosis. To enable the menu, a
password is needed that is available only to aprilia service
centres.
• Insert the service code
It is a 5 digit code, for Pegaso the code is: 25973
If code is wrong, appears the message:
• Incorrect code
The instrument panel goes back to main menu; if not, the
menu appears:
• EXIT
• ECU ACTUATIONS
• ECU PARAMETERS
• ECU ERRORS
• DASHBOARD ERRORS
• DELETE ERRORS
• SERVICE RESET
• DISCONNECT
• UPDATE
• UPDATE KEYS
• KM / MILES
Once the operation is over, the instrument panel goes back
to main menu.

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Bike info


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