200hp txrp charging or out put ?

[makomecrazy]

When the engine is off the battery reads 12.26v when the engine is on it reads 12.64v does this seems kinda low ? Any idea if this is okay .

[makomecrazy]

Does anybody have any experience with the stator and rectifier charging system on a 91 200hp txrp yamaha ?

[rodbolt17]

the system is working.
the output isn't much until you pass about 3000 RPM.
best I recall it only put out about 15 amps or so at WOT.
it was only when Yamaha went to water cooled regulators that you started seeing 30-50 amp outputs at 1100 RPM or so.

[boscoe99]

Seems low to me.

Run it at about 1500 RPM or so and see if the voltage rises. Should be approximately 14.5 volts or so I would think.

The SM calls for an output of 20 amps at 3000 RPM. More (but not much more) at a higher RPM of course and less at a lower RPM.

[makomecrazy]

Stupid question.... Would it be possible to get more amps from this motor ? Possibly by adapting a water cooled regulator???

[boscoe99]

Technically possible or economically possible?

I am guessing that you would need a new rotor, stator and rectifier/regulator. Mucho dinero in parts. Assuming they would all fit.