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About Jim Tsillas
Expertise
Can answer questions on maintenance and repair of vintage 1970's and 1980's Japanese motorcycles. Especially Suzuki.

Experience
Own two Suzuki GS's and perform all service and repair on both bikes including top-end work, carbs and electrical work.

Education/Credentials
Several years experience maintaining and repairing vintage motorcycles.

 
   

You are here:  Experts > Shopping > Motorcycles > Motorcycle Repair > 1974 Tx500 Voltage doesn't stay constant and jumps from 5 volts to 19 volts.

Motorcycle Repair - 1974 Tx500 Voltage doesn't stay constant and jumps from 5 volts to 19 volts.



Follow-Ups to Answer from Expert Jim Tsillas


phil pickup wrote at 2008-11-12 02:47:39
you have a bad ground,which will the old school regulator nuts.now a bad rectifier diodes "old school" is easy to determine.use a mutimeter w/diode checker,not ohms[fluke is wat i use]. ck rect in the text way.harness connections should not,at each joint,drop more than .2volts.this system must use a flooded battery,new school sealed batterys will not be happy.staor must ck open to ground.can load stator 55w light bulb and 12 battery to ck for layer short.unloaded a/c volts at idle at least 18acv,more than 60 reved up.watts divided 4 will give you max a/c volts



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