Question about 2007 Piaggio Fly 50
Fly 50 four stroke, 2007. Brand new carb. Have not adjusted any of the factory carb settings. Simply installed new carb out of box. Starts fine, choke working. Warms up, rides fine, up to 35 mph. When I shut it off, it will restart just fine. If it sits for about 15 minutes, it takes at least six or seven attempts to re-start it. I'm not applying any throttle so I doubt a flooding problem. Only occurs when warm and sits for 15 minutes or longer. Any suggestions? BTW, Only 900 miles on scooter.
Posted by Anonymous on
Hi, Anonymous and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery damaged or nearly discharged, should have 12.5 volts.
4. 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.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Faulty fuel pump.
9. Intake air leak.
10. Fuel tank vent hose and vapor valve plugged, or fuel line closed off, restricting fuel flow.
11. Enricher valve inoperative.
12. Engine lubricant to heavy (winter operation).
13. Ignition is not functioning properly (possible sensor failure).
14. Faulty ignition coil.
15. Valves sticking.
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.
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Posted on May 23, 2017
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Posted on Jan 02, 2017
Tips for a great answer:
Jul 26, 2016 | 2011 Piaggio Fly 50
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Jul 29, 2014 | Craftsman Garden
Yes = getting fuel (Go to 2)2 - Does the plug have spark? It should be a BRIGHT blue spark.
No = Not getting fuelCarb is probably blocked/dirty
vacuum fuel valve faultyCheck carb has fuel in it. Open the drain screw on the bowl of the carb and see if any fuel is released.
If so, the vacuum valve is fine.
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