Motorcycle Repair/Vespa 250


I have a Vespa GTS 250, battery is just over 1year old, replaced spark plug, changed oil, cleaned air filter, cleaned poles on battery. Question- Battery won't maintain charge, could it be the generator?

First check the voltage on the 2 battery post when the engine is running. It should be 13 to 14volts to keep a 12 volt battery charged up.
Then a simple battery load test at most any auto parts store will tell you if the battery is good or not. Clean the post very well. If the voltage at the post while running is lower than 13 or 14 the generator could be bad. Some auto parts stores can test your generator also.
But these tests you can do yourself.
If the voltage regulator is bad it will also drain your battery....  

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william joseph stack


I specialize in Virago carburetors. Internal parts sizes, Needle and jet sizes for each and every year and model. Hitachi and Mikuni. I also can give tech support and Tech Support for carburetor problems and issues. Carburetor tuning and syncronization. Carbburetor rejetting and dynojet installations for engine modifications. I know every needle and jet size for every Virago made. I have done over50 Virago carb Salesand Rebuilds in 2012. I have over 50 sets ofVirago carbs in stockright now. I Build, Ride and Breath Virago. I have both the 1983 Midnight Virago's. The XV750MK and the XV920MK. 1 of my 1981 XV750H is is Premier Cycles, Billy Joel's Bike Museum.... I am an Honest and Fair man. I am also a Finicky Perfectionist withmy carb work. Ihave all the obsolete hardto find carb parts. I have new diaphragms, new floats, I have the float level setting down to an art. I have fabricated transparent bowls for both version 1 and version 2 carburetors.


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